Friday mystery object #92

This week I’ve decided not to opt for an Eastery mystery object and stick with skulls – hopefully nothing too difficult, but enough to be a challenge. Any idea what this skull belongs to?

As usual I will try to respond to any questions comments or suggestions below.

Good luck and have a lovely Easter Bank Holiday!

Friday mystery object #88 answer

I’d like to begin by apologising for providing misleading information about Friday’s mystery object – I omitted a scale bar and then described the skull as being 4cm long. It goes to show how even a small amount of time can addle one’s memory, since this skull is in fact 7cm long:

I thought it would prove an easy one to identify, since it’s from a very well known species that I have talked about before – but the identification was made more difficult because it is a very young individual. This fact is clear from the lack of fusion of the bones and the lack of teeth. CopilasDenis and David Craven both spotted this and they also picked up on the fact that this skull is from a carnivore – as did ObenedO.

As to what species this skull comes from, no-one really came very close. In fact I was surprised when Jake said:

It doesn’t look catty or doggy or sheepy or deery.

since this is actually the skull of a Continue reading

Friday mystery object #82 answer

Apologies for the late posting of this answer – I was travelling back from Ireland yesterday and didn’t manage to get this post anywhere near as complete as I was hoping.

On Friday I gave you this mystery object to identify:

Pretty much everyone recognised it as being the skull of a dog or dog-like animal, but the large size of this skull (27cm long) caused some confusion. Quite a variety of breeds were suggested, but Rachel, Jamie Revell and Jake all ended up going for it being a   Continue reading

Friday mystery object #81 answer

On Friday I gave you this object to identify:

I thought it would prove quite straightforward for my astute audience and I was not disappointed. As usual Jake was the first to comment and he was spot on when he said:

I think it is some sort of big bird, it’s the braincase and […] the ear

The big bird Jake suggested was an Emu, which was slightly off as was CopilasDenis‘ suggestion of Cassowary and Cromercrox‘ suggestion of Rhea (although they all correctly spotted that this piece of skull was from a ratite). But Dave Godfrey finally picked the last remaining living ratite and the correct answer when he suggested it was  Continue reading

Friday mystery object #74 answer

On Friday I gave you another bird skull to identify:

As expected, the regulars immediately waded in with correct identifications to the group, based on the scars from the salt glands on top of the head, bill shape (including the groove running from the nostril) and the size of the specimen no doubt. So congratulations go to Dave Hone, Jake, jonpaulkaiser, KateV, cromercrox, David Craven, Matt King and Curianth (everyone who commented in fact) – you were all correct in suggesting that this is the skull of an  Continue reading

Friday mystery object #73

Last week I gave you an anthropological object to identify, so this week it’s back to skulls. Here’s one that I recently reunited with its mandible after they had been separated for over 25 years – any idea what species this now complete skull belonged to?

As usual, put your suggestions, observations and questions below and I’ll do my best to give clues and further information. Good luck!

Friday mystery object #70 answer

On Friday I gave you this skull to identify:

I deliberately didn’t provide a scale bar, partly because I wanted to demonstrate how important it can be to have a sense of scale when identifying a specimen and partly to make the specimen a bit more challenging to identify.

Nonetheless, most of you got a correct identification, with some very good subtle hints being used to communicate that fact. So well done to Jack Ashby, David Craven, CopilasDenis, Dave Godfrey and Manabu Sakomoto, who all hinted or explicitly stated that this was the skull of a  Continue reading

Friday mystery object #70

This Friday I am not going to provide any scale bar with the object. This is something that I have to deal with quite often, when members of the public email a photo of something for identification. Sometimes it’s not a big problem, particularly if the whole organism is in view and it’s has distinctive morphology (shape), but in some instances (particularly with bones) it can make identification very tricky indeed. Let’s see how you do:

Any idea what this might be?

Put your questions, comments and suggestions below and I’ll do my best to provide answers (except about size). Good luck!

Friday mystery object #69

Here’s an object I’ve been thinking about using for ages, but I’d forgotten I had a photo of it – even though it’s one of my favourite oddities from the collection:

Any idea what this weird skull might belong to?

As usual, questions, comments and suggestions below and I’ll do my best to provide answers and (not too obvious) clues. Good luck!

Friday mystery object #68 answer

On Friday I gave you this object to identify:

It’s one of my own specimens, found in 1997 and prepared using the simple method of suspending the body from a tree in a bucket with small holes drilled in the bottom to allow rainwater to drain. The specimen could have been bleached with a mild hydrogen peroxide solution, but the original intention was for it to provide an indication of the bone damage that may suggest insect activity, so I didn’t want to risk causing any additional chemical damage.

Everyone was on the right track with their suggestions – the hooked bill and large orbits making it clear that this was a predatory bird, with most people correctly opting for some kind of owl. However, Jake managed to get the species right in no time by using specimens from his own collection to inform his identification of  Continue reading

Friday mystery object #67

Here’s a specimen without any identification from the Horniman’s collections. I thought I knew what it was straight-away, but then had to spend ages trying to confirm the identification. I just hope you all come to the same conclusion as I did!

As usual, put your questions, observations and suggestions in the comments section below and I’ll do my best to reply during the day. Good luck!

Friday mystery object #66 answer

On Friday I gave you this mystery object:

I thought it would be too easy, but I hadn’t factored in that it is the skull of a juvenile, which makes it much harder to identify from just a photograph. I did drop a few hints about what it might be on Twitter when I said it was ‘easy as pie’ and I had a hard time restraining myself from making a give-away comment about it flying when Jake asked if it was a big bat.

Manabu Sakamoto spotted that it was a juvenile and that the canine-like teeth were quite distinctive of a particular group. Neil managed to convey that he knew the answer with a beautifully subtle comment:

After rooting around a bit I think that I have sussed out the answer.

The answer being  Continue reading

Friday mystery object #62 answer

On Friday I gave you this specimen and left you to work out what it was by yourselves (for which I humbly apologise):

There were some great observations from the outset – Jake immediately spotted that it had strong jaws and looks like a carnivore and Manabu Sakamoto went on to explain the biomechanical reason for the strong jaws and recognised that it’s a marine mammal. Jake came close when he said that it’s something similar to a Leopard Seal and jonpaulkaiser came even closer with the suggestion of California Sea Lion. Neil subtly hinted that it might be a Stellar’s Sea Lion, but Zigg managed to work out that it is in fact the skull of a  Continue reading

Friday mystery object #60 answer

On Friday I gave you this skull to identify from box NH.83.1:

Unfortunately I’ve not been able to respond to comments and this answer is a little late (and short) because I’ve been at a wedding in Ireland (for anyone who knows what this entails you will understand…). I will take the time to respond to comments and elaborate on answers when I get back home and have managed to get more than a couple of hours sleep.

For now I will say that Steven D. Garber, PhD suggested that this was a petrel skull, probably for the reason posited by Cromercrox – it has a tube nose and is therefore from the Order Procellariiformes. David Craven noticed that the skull is too small for an albatross and the beak is too broad at the base to belong to a storm-petrel – both being excellent observations, but the concluding suggestion of something from the Pterodroma was slightly out – they’re a bit too big. A-M (via KateV) and Prancing Papio, FCD also went for species that are a bit too big, but Rachel managed to get something the right size and shape (and distribution working with SmallCasserole’s observation about the other specimens from the same collection). She suggested   Continue reading

Friday mystery object #60

Mystery objects are usually items that I come across whilst working my way through the collections in storage at the Horniman Museum. This means you usually end up with a bit of mammal skull, since that’s what I’ve mostly been working with for the last year. Every now and again I stumble across a real mixed bag (or rather box) of specimens that need identification, so here’s another specimen from one of the boxes labelled NH.83.1 that provided mystery object #57 (click on the images for larger versions): 

I would like to take this opportunity to thank Cack-handed Kate for the loan of her camera and particularly for including the macro lens with it, which has already proved very useful indeed!

As usual, put your observations and suggestions below – but in a break from normal form I’m afraid I won’t be able to answer any questions today, as I am at a wedding and it would be frowned upon for me to be playing with my phone!

Friday mystery object #59 answer

On Friday I gave you this mystery object dragged from the cold, dead grasp of my old camera:

It was immediately identified as an ‘insectivore’ of some sort – which narrowed it down slightly. Although ‘insectivore’ doesn’t have quite the same meaning as it used to.

Once the Insectivora was a bit of a waste-basket taxonomic group that included a wide range of small insectivorous mammals, including moles, golden moles, hedgehogs, shrews, tree shrews, elephant shrews, tenrecs, colugos and solenodons. However, the group was fragmented on the basis of molecular studies and now the Insectivora no longer exists as a taxonomic group.

Despite this taxonomic shake-up the use of ‘insectivore’ still works as a descriptive term for the numerous small invertebrate eating mammals out there. Of which this is one.

But which?

The moles were ruled out straight away by Dave Godfrey, then the hedgehogs were ruled out by cromercrox, before Prancing Papio slammed in with the correct identification of  Continue reading

Maneaters

Skull of maneating tiger, Horniman Museum NH.74.11.19

Tool use, technology and cooperation have allowed humans to claw their way to the top of the predatory heap. As a species we can and do kill anything and everything. Sometimes we kill for food, sometimes for profit and sometimes for fun. Very occasionally we also kill for self protection.

Humans have been largely off the menu for quite some time – and although people are still killed and eaten by large predators with some regularity (perhaps a hundred or so a year), humans are not the first prey of choice for any species of carnivore – it’s just that some individuals within a species will develop a taste for human. When there are attacks on people it will usually be because there has been a blurring of borders between a human habitat and the habitat of the predator. The most obvious example of this is when humans are occasionally taken by sharks whilst in the sea or by crocodiles in lakes and rivers.

Staying on land, the blurring of borders between predators and people is linked with habitat loss  and the encroachment of human development, agriculture and habitation, with the associated issues of deforestation and re-purposing of land. The development of infrastructure brings humans into wilderness, such as with the Tsavo bridge project in Kenya, where a pair of lions terrorised construction workers for ten months in 1898, eating about 35 and possibly killing around 135.

As habitat is lost, predators are faced with fewer natural prey and they are thrust into close proximity with domesticated animals – with obvious consequences.  Where you have livestock being killed you also have people trying to protect their livelihood and this is where the conflict really heats up, taking its toll on both the people and the predators. There can be no winners. Continue reading

Friday mystery object #59

This week I have seen an awful lot of mystery objects at work as I’ve been sorting through some of the boxes of unidentified bone with my volunteers Cat and Jahcob. Mostly we seem to have hundreds of unlabelled sheep vertebrae, but there have been some genuinely interesting objects too.

Alas, without my camera I’ve not been able to take photos of any of this miscellanea – maybe next week… However, I do have a photo of a skull, taken before the death of my camera, that I think is pretty cool (if perhaps a little obvious for some of you):

So, do you have any idea what this beastie might be?

As usual put your questions, suggestions and observations in the comments section below, which I will do my best to respond to. Good luck!

Friday mystery object #58 answer

On Friday I gave you this skull as a mystery object, dredged as it was from the memory card of my severely concussed camera:

This was a slightly sneaky object, because I had a feeling that quite a few of you would make the same mistake as I did when I first saw this skull, by assuming that it’s from a large rodent. The large front teeth (the incisors) support this, since enlarged first incisors are a feature of the rodents.

Rodents also have a large gap behind those incisors called a ‘diastema’ – which this skull has for the lower jaw (or mandible), but you may notice that the upper jaw has three incisors in the pre-maxilla (that’s bone in the front bit of the upper jaw) before the diastema. This is easier to see in a side (or lateral) view:

You might notice that there’s a small tooth behind the third incisor in the upper jaw – that’s a canine. You might also notice the faint wiggly line in the bone of the jaw just above the canine – that’s the junction (or suture) between the maxilla and the pre-maxilla bones. The canine is the first tooth in the maxilla and all the incisors are in the pre-maxilla (this is the same for all mammal teeth).

Rodents only have two teeth in the pre-maxilla, not six. They also have no canine teeth in the maxilla. That means this mystery object cannot be a rodent. Here’s what a rodent’s diastema looks like (the suture between maxilla and pre-maxilla is really clear in this photo):

Lagomorphs (rabbits and hares) have teeth similar to rodents, except they have an extra pair of incisors behind the front pair in the maxilla – these are called ‘peg teeth’:

Rabbit_peg-teeth

Peg-teeth in a Rabbit skull

Clearly the mystery object has more incisors than this, plus those canines, so it can’t be a lagomorph either.

So what beastie has six upper and two lower incisors? Several of you worked out that this was a marsupial from the dentition (namely Cromercrox, jonpaulkaiser, David Craven and Zigg), but only Prancing Papio and Jamie Revell managed to get it to species, namely the  Continue reading

Friday mystery object #58

Alas, my camera died after receiving a bit of a knock, so the mystery object I had planned for this week has been replaced by one of the last specimens I took a photo of:

Any idea what this specimen is, where it lives or what it might eat?

Put your suggestions, observations and questions in the comments section below and I’ll do my best to answer as the day goes on. Good luck!