Friday mystery object #247

This week I have a complete mystery for you to identify. I’ve checked this specimen against all sorts of species and have drawn a blank. So, I’m opening it up to you, to see if you have some inspiration to help me solve what this is:

mystery247

As usual, you can put your thoughts, questions and suggestions in the comments box below. I look forward to hearing your ideas!

Friday mystery object #246 answer

Last week I gave you this mystery skull from the stunning Galerie d’anatomie comparée et de Paléontologie in Paris:

mystery246

I was struck by the cat-like dentition and general shape, but as many of you worked out, that’s no cat.

It is in fact a specimen of a Fossa Cryptoprocta ferox Bennett, 1833, as correctly identified by Charne, Manabu Sakamoto, Nigel Monaghan, SMerjeevski – good skills!

Fossa by Ran Kirlian

Fossa by Ran Kirlian

This carnivore is endemic to Madagascar and is the foremost natural predator of lemurs. They are well adapted to climbing in order to catch their tree-dwelling main course, with rotating ankles a bit like a Margay.

Madagascar is an amazing place for biology. It separated from Africa around 20 million years ago and has had its own unique wildlife evolving there ever since. This means that the familiar cats that fill niches in (relatively) nearby Africa are missing, since they didn’t really exist when Madagascar started drifting off. The Fossa fills that catty niche.

There may be more mystery objects to come from the  Galerie d’anatomie comparée et de Paléontologie, since the whole place blew me away!

Wow

Friday mystery object #246

Last weekend I had a fantastic visit to Paris and my wonderful wife gave me the best Valentines Day gift in the world, by taking me to the spectacular Galerie d’anatomie comparée et de Paléontologie.

Paris_Comparative_Anatomy_G

As you might have guessed, I was in bone heaven and had to be dragged out by security at closing time – but not before taking hundreds of photos of the incredible collections.

So this week’s mystery object comes courtesy of Georges Pouchet, the comparative anatomist who established the Gallery:

mystery246

Any idea what this might be?

As usual you can put your suggestions, thoughts and questions in the comments box below. I hope you enjoy the challenge!

Friday mystery object #245 answer

Last Friday I gave you this guest mystery object from Dr Nick Crumpton at the NHM:
mystery245
Here’s what Nick had to say about it:
So when I first picked it up I thought – embarrassingly now – that perhaps it was something a bit pinniped-like but then the teeth didn’t match that idea at all so I reverted to thinking it was a bit more doggy.
Irritatingly, it was a juvenile so that scuppered size-based guesses, and ruled out taking too much information from the posterior, mandibular teeth. Also, the skull was darn cute, with a shorter snout than an adult would possess.
I had a couple of ideas from looking at the width of the zygomatic arches, but that lack of a parasagittal crest got me all twisted around. And time was tight for what we needed it for!
My esteemed colleague Mr Garrod was the first to push me in the direction of a wolverine, but I’ll leave it to Paolo to show how he managed to ID the little critter and save the day – although it looks like a bunch of people on here already managed that! Love the bone-banter. 😀
We’ve discussed in the past how the skulls of juvenile animals can be misleading and for this species a number of the features you would immediately recognise in the adult are absent in this juvenile. Therefore I’m not that surprised the suggestions in included Arctic Fox, Sea Otter, Common Seal and Spectacled Bear, in addition to the possibility of Wolverine.
Wolverine cranium

Wolverine cranium for comparison

Despite the juvenile dentition, the blade-like molar and 3rd premolar, and robust second molar were indicative of a carnivore with a specialisation for eating bone and the breadth across the zygomatic arches indicated something with a powerful bite force.
Wolverine dentition is remarkably robust, since they often scavenge bone and in the winter they need to feed on meat that has frozen solid. They have a wide skull (see above), but the relatively large upper molar is at right angles to the 4th premolar, which has a cleft that the 3rd premolar nestles into.
This is rather different to the much straighter dentition of the mystery animal, which is distinctly more cat-like, albeit with too many teeth. That narrows it down to one of the Hyenas. From there it becomes a bit more difficult and the fact it’s a juvenile throws a bit of a spanner in the works, but if pushed I’d probably opt for Spotted Hyaena Crocuta crocuta (Erxleben, 1777).
So well done to Chris, Lena, palfreyman1414, Allen Hazen and henstridgesj who all came to the same conclusion.
Finally, a big ‘thank you!’ to Nick for posing a decent challenge!

Friday mystery object #245

This week I have a guest mystery object for you from Dr Nick Crumpton at the NHM.

Hello Zygoma fans. Nick Crumpton here from across the way at the Natural History Museum in South Ken.

Well, this fellow completely stumped me for a few hours this week on finding it in our teaching collection:

mystery245

Until, that is, I called on the always helpful advice of Mr Viscardi (OK, and a certain Mr Garrod too…)

I’d love to see whether anyone can work out what it is, and how they figured it out!

You can leave your suggestions and thoughts in the comments section below – enjoy!

Friday mystery object #244 answer

Last week i gave you this colourful specimen to identify:

mystery244

As I suspected, some of the keen birders out there were straight on the case and GrrlScientist (unsurprisingly to me) immediately knew the species and an awful lot about its taxonomy, offering helpful hints and clues to other commentators.

After some discussion it became clear that this is a Finch and one of the Neotropical varieties at that. The bright yellow belly, emerald green head, throat, chest and wing, brilliant blue nape, back and eye ring all suggest that this is a male Blue-naped Chlorophonia Chlorophonia cyanea longipennis (Du Bus, 1855) from Peru.

There are other subspecies of Blue-naped Chlorophonia, but they have some slight differences in appearance, such as a yellow forehead, yellow tinged crown or green feathers in the mantle.

Here’s one of the little chaps in action:

So a big well done to everyone who managed to work it out!

Friday mystery object #244

This week I thought I’d give you a beautiful bird skin from the Horniman collections to have a go at identifying:

mystery244

Any idea what this colourful critter might be?

You can leave your suggestions in the comments box below – but please try to be cryptic if you find it easy, so other people get a chance to work it out themselves. Enjoy!

Friday mystery object #243 answer

Last week I gave you this nightmarish looking mystery object to identify:

mystery243

There were lots of great suggestions about what it might be, with most of you in the right area of the animal kingdom with a legless critter in mind. In particular a fairly primitive type, with aglyphous or ‘groove-less’ teeth (as opposed to snakes characterised by having opsithoglyphous or ‘backward grooved’, proteroglyphous or ‘forward grooved’ and solenglyphous or ‘pipe grooved’ teeth).

There were several suggestions of Boa constrictor – specifically the right maxilla (upper jaw), but they have a straighter top to the maxilla and a differently shaped process that connects with the frontal and ectopterygoid bones (check out Udo Savalli’s snake skull anatomy page to see what those terms mean).

Anaconda was also suggested, but the anterior (front) part of  the maxilla is not squared off enough.

Nicola Newton, rachel and Alex Kleine all suggested Python, which is what I think it is. I’m not certain of the species, but it’s definitely a big one – I’m leaning towards the Reticulated Python Python reticulatus (Schneider, 1801).

Just to give you a better idea of which bone it is, here it is compared to the skull of another large Python skull from the Horniman’s collection:

mystery243b

and to give a better sense of scale, here it is with my (fairly large) hand for comparison:

mystery243a

My very rough estimate of the length of the animal, based on other skeletal material I’ve seen, is around 5m – that’s one snake I wouldn’t want to get on the wrong side of!

Friday mystery object #242 answer

A very Happy New Year to everyone!

Last week (and indeed last year) I gave you this box of bones and one non-bony object, dug up on the Isle of Sheppey to identify:

mystery242a

Everyone correctly spotted that the bones were canid (and by everyone I mean Ric Morris, witcharachne, Jake, Paleotool, Allen Hazen and Sam Misan), either Dog or possibly Fox, as suggested by Sam Misan.

The length of the bones would fit both Dog and Fox, but they’re a bit too robust for Fox – here’s a comparison of a radius from the box and a Fox:

mystery242d

So we have a Dog in the box, but the non-bony object has posed more of a challenge:

mystery242b

mystery242bb

The initial thought was that it might be a musket ball, but it’s rather on the big side for that – more like a small cannon ball or piece of grapeshot.

The material its made of may provide a clue as to what it is. It’s not magnetic and there’s no red coloured oxidisation on the surface, so it’s not iron. It doesn’t have any casting marks, it’s too hard to be lead and although it’s dense, it doesn’t seem to be metal.

To my mind it seems likely to be a naturally formed mineral concretion. It could be a phosphatic nodule, pyrite or marcasite (they contain iron, but they’re not magnetic) or maybe a quartz mineral, like flint (which is what I’m leaning towards).

This may be naturally occurring in the area, but if the materials were collected together it seems likely that the ball had been used by someone for something. The possibility I’m inclined to go for is as ammunition for a sling.

All a bit speculative I’m afraid, but that’s how the game sometimes works out. Thanks to everyone for your input!

Friday mystery object #242

Seasons greetings! Since it’s Boxing Day, I thought it would be appropriate to give you a box of bones from an archaeological dig to have a go at identifying:

mystery242a

Here are a couple of detailed images of some of the bones to help you:

mystery242c

And here is a detail of the non-bony object that’s associated:

mystery242b

You can put your questions, observations and suggestions in the comments box below and maybe we can work out what’s been dug up!

Friday mystery object #241 answer

Last Friday I gave you this object, that I’ve been working on, to identify:

mystery241

Ric Morris was straight in with the nicely disguised correct answer of occipital bone viewed from the basal aspect, correctly suggesting something bovine as the source.

mystery241b

This is the kind of object that you often come across from archaeological sites, where material may have been dug up from a butchery site, kitchen midden or similar assemblage.

Fragmentary bits can be quite hard to identify compared to complete skulls, but when you get a fairly complete chunk like this it makes things a bit more straightforward. In particular the hole of the foramen magnum and bordering occipital condyles provide a clear indication of where in the body it comes from. The shape and size of the condyles also helps narrow down the species.

Expect some more burnt and broken bits of bone in future mystery objects!

Friday mystery object #241

Recently I’ve been working through boxes of mixed archaeological bone and bone fragments. So here’s one of the objects I had to identify as part of that process:

mystery241

Any idea what it might be?

As usual you can put your observations, suggestions and questions in the comments box below. If you find it easy, please try to use a cryptic clue so other people get a chance to get involved. Have fun!

Friday mystery object #240

After the last mystery object, which was really difficult, I have an easier one for you to identify:

mystery240

Apologies for the rather odd-looking set of images – the specimen proved quite hard to get level for photography.

As usual for easy objects, please try to be a bit discrete with your answer so everyone gets a chance to test their identification skills. I look forward to some interesting answers!

Friday mystery object #239 answer

Last Friday I gave you a really difficult mystery object to identify, in the form of this mysterious caramel-brown lump:

mystery239

It turns out that for the first time in ages, nobody managed to get the right identification, although there were a lot of great suggestions ranging from “headless, legless rubber chicken. Which has been burned in a fire some great time ago” by Matt H., to a hyperostotic fish spine, which Jake and henstridgesj had in mind.

This lump is in fact a dentine nodule from inside the tusk of an African Elephant Loxodonta africana (Blumenbach, 1797).

These sorts of internal growths form when a tusk gets damaged and the pulp inside becomes infected. New dentine is laid down in response to the infection, walling off the affected tissue and preventing the further spread of bacteria.

These growths come in a variety of forms – none of which look much like ivory. Here’s a selection to give you an idea:

mystery239answer

So the next time you find something that looks like a burnt rubber chicken, or an overly firm bit of ginger, you may want to check to make sure it’s not ivory.

Friday mystery object #238

Since it’s Halloween I thought it might be appropriate to have something a bit creepy to identify – and what’s more creepy than clowns? Apart from maybe dolls. So here’s a clown doll:

mystery238

Any idea what this creepy little object is made from?

While you’re pondering on that you may want to also have a think about what this eerie noise from the British Library Wildlife Sound Archive is made by:

…and it’s not the sound of a tiny wild clown chasing sheep in the dead of night.

Probably.

Friday mystery object #237 answer

Last Friday I gave you this sound and skull combination to have a go at identifying:

mystery237

As many of you worked out, the skull and call belong to quite different species that share a love of the seaside.

The call belongs to the somewhat enigmatic Common Eider Somateria mollissima (Linnaeus, 1758) as identified by mark b, Chris, Melanie, Henry McGhieAnne Åslaug Holder and stuart petch.

A male Somateria mollissima (Common Eider) at the London Wetland Centre, Barnes, UK. By Diliff, 2013

A male Somateria mollissima (Common Eider) at the London Wetland Centre, Barnes, UK. By Diliff, 2013

These large marine ducks are at home on the water, where they feed on molluscs and crustaceans. They are probably best known for their super-soft downy breast feathers, that the females use to line their nests and humans use to fill their pillows.

The skull belongs to a Razorbill Alca torda Linnaeus, 1758, as identified by Ric Morris, mark b, Chris, MelanieHenry McGhieAnne Åslaug Holder and stuart petch.

Razorbill at bird cliff in Westfjords, Iceland. By Gsd97jks, 2005

Razorbill at bird cliff in Westfjords, Iceland. By Gsd97jks, 2005

These birds are great divers, using their wings to ‘fly’ underwater. They feed on small fish and other slippery critters, caught using that characteristic bill.

Congratulations to everyone who managed to work out what the two species were – there’ll be a final mystery sound from the British Library Wildlife Sound Archive to identify next week, courtesy of curator Cheryl Tipp!

Friday mystery object #236 answer

Last week I gave you this mystery sound and skull to identify, with a the additional challenge of asking whether they belong to the same species:

mystery236

As it turns out several of you managed to get the bird in question. The wide variation and complexity of the song suggested a passerine bird, with a high degree of control of its syrinx. In fact, this species is named for its ability to produce loud and intricate calls containing a range of phrases (incidentally including mimicry of noises it has heard) – it’s a Song Thrush Turdus philomelos Brehm, 1831.

Song Thrush singing a song in a tree. By Taco Meeuwsen 2006

Song Thrush singing a song in a tree. By Taco Meeuwsen 2006

So well done to mark b, Mieke Roth and Melissa Harrison, who all managed to get the right bird. A big thanks also goes to Cheryl Tipp, curator of the Wildlife Sound Archive at the British Library, for supplying the song. I’d heartily recommend checking out the ‘language of birds‘ pages for more information on birdsong!

 

Friday mystery object #236

This week I have a double mystery for you.  There is a sound recording from the British Library SOund Archive, courtesy of curator Cheryl Tipp and there is also a skull for you to identify:

mystery236

Do you think that the sound and the skull belong to the same species, or do you think I’m trying to trick you?

You can put your thoughts, questions and suggestions in the comments section below. Have fun!