Friday mystery object #549 answer

Last week I gave you this skinny piece of bone to have a go at identifying:

As it turns out, it was both a fairly easy one, and a difficult one at the same time. The easy bit was working out what the bone was and the family that this particular one comes from. The difficult bit was working out the species.

This bone is part of the tongue-bone (or hyoid) of a woodpecker – as everyone seems to have known, based on all the comments. More specifically, this hyoid is from a European Green Woodpecker Picus viridis Linnaeus, 1758.

If you’re not familiar with the hyoid of a woodpecker, it’s a particularly interesting structure that I have written about before (all the way back in 2012). To summarise, the tongue of woodpeckers is extremely long and has barbs, which allows the woodpecker to insert it into the holes it drills in trees to fish out insect larvae.

To help accomodate this length, the hyoid arises from the right nostril of the bird and goes around the skull and into the mouth, supporting the muscle of the tongue almost the whole way around. The tongue can then contract against the bone, which allows it to elongate significantly:

What a tongue!
Juvenile green woodpecker (Picus viridis) male standing on a grassy ground with his tongue sticking out. Image by hedera.baltica, taken on June 27, 2018

Since I first blogged about this, there has been research published that has dismissed one of the proposed functions of this unusual feature. Research suggests that it is no longer considered likely that the tongue and hyoid act like a shock-absorber to help protect the woodpecker’s brain from impacts when pecking wood. (Physiology: Woodpecker skulls are not shock absorbers: Current Biology).

This was previously a widespread idea that had gained a lot of support, but I’m not particularly surprised that it probably isn’t the case to be honest, since it didn’t make a huge amount of sense from a functional perspective. Other species of bird also wrap their hyoid around their skull in the same way, simply to accommodate long tongues, but without any need for cushioning their brain. Hummingbirds are a good example that I’ve featured on the blog before:

Hummingbird preparation showing the hyoid wrapping around the skull

Shock absorbing or not, these long hyoids are fascinating features, that leave a clear mark on the skull of the birds that have them – see the wide, smooth groove over the top of the skull of the specimen that this mystery hyoid came from below (it even makes a handy place to write a museum number!):

Green Woodpecker skull, showing hyoid groove extending from nostril and over the skull.

Just to note, I thought that someone might have guessed the species based on the scale and shape of the mystery object. I noted that it was 6cm across, and with that curvature it offered a hint at the length of the skull, ruling out smaller species.

For reference, here are examples of the only woodpecker species that have been recorded in Ireland, with a scale bar to help compare sizes:

I hope you enjoyed that little update on our understanding of the weird and still wonderful woodpecker hyoid.

Friday mystery object #546 answer

Last week I gave you this guest mystery object from regular contributor Joe Vans:

It does pose a real challenge to get to species level, but the Family is a lot more achievable with those distinctive four tooth plates that scream Tetraodontidae.

Joe kindly offered up locality information about where this specimen came from, which does help to narrow things down quite a bit:

mid-peninsula Baja California, gulf side.

With this information the possibilities drop substantially – as Adam Yates said:

I found a list of fish from the Gulf of California. It includes 7 species in the four-tooth family. We can immediately rule out the sharpnose because it has an adult body length of about 9 cm (too small for these jaws).

Narrowing it down further gets tricky, as you need comparative material – if you can find it. For me I spent a while trying to get some decent images for reference and I got lucky with the excellent Osteobase which is an incredible resource for finding fish bone images across many families, but unfortunately there isn’t huge coverage at species level (given the diversity of fish, that would be a mind-boggling undertaking).

A good amount of scrutiny of the premaxillary, dentary and maxillary left me fairly happy that the one Tetraodontidae represented on Osteobase is in fact the same as this species – so I plumped for the Bullseye Puffer Sphoeroides annulatus (Jenyns, 1842).

The answer to last week's guest mystery object - did you work it out?
Bullseye puffer (Sphoeroides annulatus), Source D. Gordon E. Robertson, 2011

Fortunately, Joe Vans saw this fish when there was a bit more to it, and he was able to confirm that this indeed what it is.

I hope you enjoyed delving into the deeps to figure out which pufferfish we were looking at. I don’t think anyone nailed it, but I’m not too surprised given how tricky it is to to find good comparisons. I’d like to pass on my thanks to Joe Vans for sharing his specimen!

Friday mystery object #537 answer

Last week I offered up a fossil specimen from the collections of the Horniman Museum & Gardens for you to have a go at identifying:

The type of preservation here is quite distinctive for those familiar with fossil Lagerstätten (sites of exceptional fossil preservation or concentration). This silvery sheen on a piece of dark slate is immediately recognisable as the type of soft-bodied preservation I expect to see in specimens from the Burgess Shale.

The Burgess Shale is an incredible fossil locality in the Canadian Rock Mountains, that preserves animals from marine ecosystem that was rapidly buried around half a billion years ago. The rapid burial and some factor that created a hostile environment (low O2 or perhaps a hypersaline seep) prevented the decay of the soft tissues of the animals that were buried and created conditions that preserved soft parts of the animals present, rather that just preserving hard parts,

This unusual set of conditions means that rather than just seeing shells of animals like brachiopods and carapaces of trilobites, we get a much more accurate snapshot of marine life at the time, including a variety of bizarre worm-like animals and creatures with forms that aren’t recognisable as being from types of animal alive today.

This particular specimen is not all that strange in comparison to some of those organisms that diversified in the Cambrian explosion (a name we use to describe the apparently sudden diversification of multicellular life around 540 million years ago).

Artistic reconstruction of the Cambrian (Drumian) Marjum biota in the House Range of Utah, USA, including radiodont components. Credit: Holly Sullivan (www.sulscientific.com) 19 January 2021.
Used in Pates S, Lerosey-Aubril R, Daley AC, Kier C, Bonino E, Ortega-Hernández J. 2021. The diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian) PeerJ 9:e10509 https://doi.org/10.7717/peerj.10509

The mystery object actually doesn’t look too much different from some of the living Polychaetes, such as the pelagic Gossamer Worm:

Planktonic polychaete worm in the genus Tomopteris. Image by uwe kils, 2005

However, there are several different Polychaete worms recognised from the Burgess Shale, so it does take a bit of close investigation to work out which it’s likely to be.

Adam Yates took a good look and while his first response of Canadia spinosa Wallcott, 1911 matches the label with the specimen, he updated his answer. Looking at the setae structure, I think that Adam is right in rethinking this. In Canadia spinose the setae appear more flight-feather-like, with longer leading bristles and a more swept-back appearance:

Smithsonian specimen of Canadia spinosa. Image by Bruce Martin, 2015. Source https://collections.nmnh.si.edu/search/paleo/?ark=ark:/65665/3c7b58e5ae22a4a34b6587ec5cfc46b49

The setae of the mystery specimen appears a bit different, with bristles of a more similar length that stick out in more separated tufts. This makes me concur with Adam, in that we may be looking a Burgessochaeta setigera (Walcott, 1911):

Burgessochaeta setigera USNM198705. Image from Parry et al. (2016) The impact of fossil data on annelid phylogeny inferred from discrete morphological characters. https://royalsocietypublishing.org/view-large/figure/15125348/rspb20161378f01.jpeg

I hope you enjoyed that little journey into the distant past as much as I did. Learning about the Burgess Shale was a highlight of my undergraduate days, as it offered a glimpse at both the lost diversity of the past, and a hint at the unfathomable depth of time through which life has persisted, adapted and evolved.

Friday mystery object #503 answer

Last week I gave you this very tricky object to have a go at identifying:

It certainly proved a challenge and I have to admit to feeling a little guilty about setting such a difficult one. The reason it was such a challenge is because this is an abberant form.

I’m not sure if anyone worked it out fully, but katedmonson dropped in the word “Oughter” and Adam Yates spotted that it has a long-slung body that looked like it might belong to a mustelid… which it does.

This is in fact a Eurasian Otter Lutra lutra Linnaeus, 1758 – a particular noteworthy specimen due to its speckles:

And when I say it’s noteworthy, I mean there was a note written about it – published in Volume 18 of The Irish Naturalist in 1909. It’s an interesting note, that draws on the experience and knowledge of Mr Williams, the hugely experienced taxidermist who prepared the specimen – along with many others in the Dead Zoo.

Here’s the note for your perusal, and while we’re talking about notes – it’s worth noting how much darker the fur is in the photo from 1909 – this is the problem we have with fading due to light over time:

Thanks for all your thoughts on what it could be – it was really interesting to see how everyone went about solving this one!

Friday mystery object #497 answer

Last week I gave you this guest mystery object from Andy Taylor FLS (and now) FBNA to identify:

Image by Andy Taylor FLS FBNA, 2024.

It wasn’t a particularly difficult one, since that huge bill immediately narrows down the possibilities.

The spear-like bill shape is reminiscent of a heron’s, but it’s heavier – not quite as massive as something like a Marabou Stork, Adjutant, or Jabiru, but heavy nonetheless.

As Adam Yates noted, this is the skull of a White Stork Ciconia ciconia (Linnaeus, 1758) – the second mystery object in a row with the initials C. c. (the previous one being Crocuta crocuta).

When attempting to identify bird skulls, a hugely useful resource for reference is Skullsite, which is run by regular commentor on the blog, Wouter van Gestel – who referenced the White Stork with a comment relating to their reputation for the delivery of babies.

So well done to everyone who worked out the species, here and on Mastodon, Bluesky and LinkedIn – and my thanks to Andy for sharing another gem from his collection!

Friday mystery object #497

This week I have a guest mystery object for you, from avid naturalist and frequent contributor, Andy Taylor, FLS:

Image by Andy Taylor FLS, 2024.
Image by Andy Taylor FLS, 2024.
Image by Andy Taylor FLS, 2024.

I suspect that some of you will get this one easily, so it’s time to break out your creativity and let me know what you think it is with a cryptic clue.

I hope you have fun with it!

Friday mystery object #494 answer

Last week I gave you this hansome critter to identify:

I thought that it might prove tricky, since as with most of the Dead Zoo specimens, it’s quite faded. However, Adam Yates recognised it straight off the bat (if you’ll excuse the pun),

This is a Grey-headed Flying Fox Pteropus poliocephalus Temminck, 1825, a species of fruitbat native to Southern Australia.

Normally I’d go through and point out some identification tips, or provide a bit of story about the animal, but after 4 years I have finally succumbed to Covid-19 and I just don’t have the energy or brain power for that today – my apologies!

Hopefully by next week I’ll be a little more with it! Stay safe folks.

Friday mystery object #476

This week’s mystery object is a guest specimen from regular contributor Andy Taylor, FLS, chosen for its seasonal colours:

Any ideas what these living party decorations might be?

As ever, you can pop your questions, thoughts, and suggestions in the comments below – no need for cryptic clues this time around as it’s a tricky one!

With that seasonal conundrum to consider, I wish you all a wonderful holiday weekend!

Friday mystery object #358 answer

Last week I gave you this skull from customs to have a go at identifying:

Adobe_20190613_200131.png

The long horns rising in line with the plane of the face are a distinctive feature of the genus Oryx, which most of you spotted straight-off.

However, after that it gets a bit more tricky, not least because there are several species of Oryx and within the species there are different subspecies and populations from different parts of the African continent.

The first species that’s easy to rule out is the Scimitar Oryx, O. dammah since they have strongly curved horns which don’t diverge as much as this specimen. This species is currently extinct in the wild and individuals only survive in captivity.

 

Scimitar Oryx in Werribee Open Range Zoo in Victoria, Australia. Image by Waddey, 2009

 

Next up is the Arabian Oryx O. leucoryx which used to be extinct in the wild, but which is one of the few species to have become reestablished in the wild by captive breeding and release programmes. This is the smallest Oryx and the mystery specimen’s horns are way too long to be from this species.

Arabian Oryx in the Dubai Desert Conservation Area. Image by Sharp Photography, 2014 

Getting to the more likely species, there’s the East African Oryx, which either has a couple of subspecies or is two different species – the Common Beisa O. beisa, which is endangered and the Fringe-eared Oryx O. callotis, which is threatened. The other possibility is that it’s a Gemsbok O. gazella, which is still doing well in the wild.

Common Beisa. Image by Steve Garvie, 2010

Fringe-eared Oryx. Image by Riaan Marais, 2009

Gemsbok. Image by Sharp Photography, 2018

As you’ve probably worked out, part of why customs are interested in knowing which species this specimen belongs to is knowing what level of protection it has under CITES, should they need to pursue a prosecution. Regardless, the specimen was seized because it wasn’t properly prepared and it entered Ireland without the appropriate information.

Of course, differentiating between the Gemsbok, Beisa and Fringe-eared Oryx using only the skull is tricky (and even harder if you only have photos).

Fortunately, there is literature that can help, with measurement ranges for certain features, like horn length, distance between horn tips and number of rings on the horn. Of course, these are only indicative, but they offer a guide to most likely species. Ungulate Taxonomy by Groves & Grubb, 2011 has a handy table of these, which I used to narrow down the options to just one – a population of Gemsbok Oryx gazella (Linnaeus, 1758) from the Nata River in the northeastern region of Botswana.

Of course, DNA sampling can offer a more certain diagnosis these days, but only if there is a good quality reference sequence to compare against and it assumes there is the equipment and expertise available to do the sampling and analysis. This is why identification from morphology can still play an important role in managing wildlife crime.

Friday mystery object #344

This week I have a specimen that I’ve been considering for display for you to have a go at identifying:

mystery344.jpeg

No scale for this, but it’s probably safe to say it’s bigger than you’d be comfortable with.

For some of you this will be too easy, for others it may pose more of a challenge, so if you do know what it is, please keep your suggestions cryptic to keep things fun for everyone!

Friday mystery object #295 answer

Last week I gave you a bit of detail about a particular collection at the Dead Zoo in Dublin, which we don’t have much information about. In particular I was interested in your opinion on this specimen:

mystery295

The general consensus was that it’s a parrot, which I totally agree with and the there was discussion of Lorikeet and Parakeet based largely on the size. Palfreyman1414 noted that the skull was longer than you normally see in a parrot – which is true, but that length is mainly coming from the bill, and you have to keep in mind that parrots have a weird hinge on the upper part of their bill, which allows more mobility. This specimen has simply been prepared with the bill in a slightly elevated position, creating a misleading sense of a length in the skull.

The morphology of the  mandible is quite useful in distinguishing parrots, and to me this looks like it may belong to a Cobalt Winged Parakeet Brotogeris cyanoptera (Salvadori, 1891) although I’ve not seen a scale or  for any other speciemens, I’m just basing it on the  morphology of that distinctive mandible

So many thanks for all of the suggestions!

Friday mystery object #289 answer

Last week I gave you this object to have a go at identifying from the Grant Museum’s Micrarium:

mystery289

There were all sorts of suggestions, but it turns out that the very first comment by Chris was correct – these are the mouthparts of a Honeybee Apis mellifera Linneaus, 1758.

Honey Bee showing its mouthparts in situ. Image by Jon Sullivan

Honeybee showing its mouthparts in situ. Image by Jon Sullivan

These are more than just feeding apparatus for the bee, they also act as radiators to help it cool by evaporating fluids when they get overheated. The mouthparts also play a role in honey production, since honey is formed from nectar that is partially digested and regurgitated through them.

Bees are in the news a lot at the moment, due to their importance as pollinators (Honeybees are estimated to contribute around £165 billion of ecosystem services to global agriculture) combined with problems like colony collapse disorder in the USA and severe population decline of Honeybees and bumblebees in the UK.

There are opportunities to get involved in survey work  to help work out what’s happening, so why not get involved?

Natural Interest: Using Natural Science Collections to Engage Audiences

In a few weeks I’ll be delivering some training in Cyfarthfa Castle, Merthyr Tydfil, which will look at using natural science collections to engage a range of audiences. If you think this might be of interest the details are below.

handling_specimens

Date & time: 11 March 2015 10am for a 10.30 start to 4.30pm

This free course is funded by CyMAL and provided through the Linking Natural Science Collections in Wales partnership project. It is open to staff and volunteers working in museums in Wales and beyond. NB a charge of £10 for catering will be made for those working in museums outside Wales. Any cheques to be payable to ‘Federation of Museums and Art Galleries of Wales’.

It is suitable for anyone who:

  • Wants to think creatively about how to use natural science collections
  • Is already working with natural science collections
  • Is interested in making links to local landscapes/wildlife groups
  • Wants to tackle current issues such as biodiversity and climate change
  • Wants to make links between natural science collections and social/industrial history etc.

Aim: To offer insight into creative ways of using natural science collections to engage key audiences.

By the end of the course participants will have:

  • details of useful resources
  • ideas for using their collections
  • greater confidence in their ability to use natural science collections to engage with key audiences, including schools, communities and specialist groups.

Training Methods: A blend of presentations, practical exercises, informal discussion and one to one consultancy.
Preparation: Please come with an idea of what is in your natural science collections (eg geology, zoology, shells etc.)
Registration Registration requests are limited to 2 per organisation however we are happy to waitlist any others in the event the course is not fully subscribed. Please contact
Sarah.daly@museumwales.ac.uk to book a place.

100 a day in May

I don’t know about you, but my job can be quite sedentary. Lots of time spent in front of the computer or looking at skulls, very little time getting any exercise – obviously not counting my stint as Extreme Curator…

Every so often I try to get off my backside and do something approaching exercise, but because I am fundamentally lazy, I can find it hard to get motivated.

Last year I forced myself to do the Push-ups Challenge (100 push-ups a day for 6 weeks) and by the end of the challenge I was feeling far stronger, more toned and significantly more self-satisfied, because I’d stuck to my goals.

One of the things that helped me was to share my progress each day on Twitter as way of keeping track of the challenge. What I hadn’t expected was the support and encouragement that came from people online, which really made me feel like I wanted to complete the challenge.

I’ve decided to do a version of the challenge again this year, during May and I hope to encourage other people to take part. The hashtag on Twitter is #100aDayInMay and if you feel like doing some exercise with some training buddies to offer support and encouragement, why not join in?

The rules are simple:

  1. try to do 100 push-ups a day. Both full and half push-ups are fine, and you can split them into as many sets as you need. 20 sets of 5 are as good as 5 sets of 20 in this challenge. Ideally, by the end of May you’ll be able to do fewer sets of more push-ups, maybe with some harder variations included – like doing full push-ups as well as/instead of half push-ups, or elevating your feet if you want to really challenge yourself.
  2. don’t injure yourself. Use good form on your push-ups and if you have any medical issues please check with your doctor before trying the challenge.
  3. share and support! Anyone can decide to do some push-ups, but it’s more fun and more motivational if you share what you’re doing with the other people taking part (you can find them on this list).  If you want to join in, just send a tweet containing the hashtag #100aDayInMay saying that you’re taking part. Remember that other people like to be encouraged too, so don’t forget to support the others taking part.

Finally, here’s a video explaining good form in both full and half push-ups (although the guy’s bum seems to be raised a little bit too high for perfect form):

I hope you feel like joining in!