Author: More than a Dodo

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Getting a grip on Life

Frogs

Hello. My name is Mark Carnall and this is my first post for More than a Dodo. It’s my third week as the new collections manager for Life Collections here at the Museum, which means I now have responsibility for all of the life-related material that isn’t entomological (so no insects, spiders, millipedes and other creatures which loosely fall under the term ‘minibeasts’).

Mark CarnallWhile I’m thankful that my job is made a little easier for not including roughly two thirds of animal life, it’s challenging enough: microscopic snail shells up to entire whale skeletons – and everything in between – fall under my purview.

There are approximately half a million specimens in my care: mammals (including humans), birds, fish, reptiles, amphibians, sponges, corals, jellyfish, molluscs, echinoderms (starfish, sea urchins and their allies), and a whole host of more obscure but equally interesting animals.

Hippopotamii, hippopotamuses Skulls of hippos in the mammal osteological store

How does one go about getting to grips which such a large and varied collection? Well, rather than starting at aardvarks and working through to zebras, perhaps the best way to learn about the collection is by facilitating the use of it.

Already, enquiries have been coming in from researchers, other museum professionals and members of the public. So far, I’ve had questions about preserving giant squid; the number of gorilla specimens we hold; the sexy parts of crabs; the history of the whale specimens on display; the identity of a bird-footed cup; and a number of queries about our human remains material.

I’ve also been taking the time to geek out over explore the collections, and there’s barely a drawer or cabinet that doesn’t have a first, largest or oldest. It’s not all treasures though: there’s material that scientists might regard as barely interesting as a data point, but is perfect for engaging and enthusing visitors in displays, events and workshops.

Molluscs- Sun dappled mollusc cabinets. I love the smell of molluscs in the morning.
Sun-dappled mollusc cabinets. I love the smell of molluscs in the morning.

This was highlighted in my first week here when a visitor brought a specimen in for identification. Although it was ‘just a cow tooth’, its owners were so happy to solve their mystery that they wanted to print and frame the identification (hopefully this sparked a lifelong interest in natural history too).

So I’ll be spending the next weeks finding my way around the collections and you’ll be discovering it all at the same time through blog posts here, my Spotlight Specimen slots in the Museum and no doubt through our jam-packed public events programme.

Next time, I’ve got a whale of a tale for you. Or perhaps that should be tales of a whale for you…

Mark Carnall, Collections Manager, Life Collections

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Presenting… the Gault Clay

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Our changing Presenting… display offers a look at highlights, themes and topical material drawn from the Museum’s collections. The current display presents a rich selection of fossils taken from a formation known as the Gault Clay. This will be on show until 21 September (Madagascar is up next), so it’s almost your last chance to see it.

The Gault Clay is known for its exceptional diversity of fossils. Deposited across northern Europe in the Lower Cretaceous, 100-112 million years ago, its abundance of ammonite fossils shows that it was laid down in a marine environment, at a time when sea levels were rising rapidly.

The Gault Clay in the Cliffs at Folkestone
The Gault Clay in the Cliffs at Folkestone

Best seen at Folkestone in Kent, the Gault is sandwiched between the Lower Greensand and Chalk formations. The Folkestone Warren landslip has provided ample opportunities for fossil collectors for centuries. The land is still on the move today, but 100 years ago, on 19 December 1915, a major slip occurred which shut down the local railway for five years.

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Ammonite (Hoplites dentatus)

William Smith (1769-1839), who published the first geological map of England and Wales 200 years ago this year, called the Gault ‘blue marl’. He used the fossils found in it to map the Gault across the South of England.

Along with ammonites, it is possible to find snails, clams, shark’s teeth, fish, crabs, and lobsters. Even dinosaur fossils have been found, including the ankylosaur Anoplosaurus.

Some of the Gault collections in the Museum date back to the 1800s; others were collected as recently as 2015.

The Presenting... display, near the entrance to the Museum
The Presenting… display, near the entrance to the Museum

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Striking gold

Nagyágite SEM

For the last six weeks, Oxford Earth Sciences undergraduate Charis Horn has been identifying mystery minerals in the Museum’s collections, and she’s struck gold! More precisely, she’s found rare gold-bearing crystals of nagyágite and sylvanite on a specimen which for centuries had been mis-labelled as the common lead mineral galena.

Nagyágite is composed of gold, lead, sulphur, antimony and tellurium and forms metallic grey crystals. Sylvanite is made up of gold and tellurium with a little silver, and is pale, silvery yellow. These minerals and their surrounding rock matrix indicate that the specimen is from the gold mines of Săcărâmb, in Romania, formerly known as Nagyág –  the place where nagyágite was first discovered.

Charis on SEM
Charis using the scanning electron microscope

Charis is one of a number of interns funded by the Higher Education Funding Council (HEFCE) through the University’s Internship Programme to learn more about academic research.

Rocks and minerals have always fascinated me, which is the reason I chose to study Earth Sciences at university. I find it amazing that the history of this planet can be read in the geology beneath our feet.

Many of Charis’s samples were put aside for a bit of extra work many years ago because the minerals on the specimen were potentially more interesting than the labels might suggest. Some can be identified by looking at physical characteristics such as colour and crystal shape, or by testing for properties like hardness and magnetism.

Others are much more challenging, and Charis has been using an analytical scanning electron microscope (SEM) to see close-up images of minute crystals to find out what chemical elements they are made of. There’s an SEM image of the nagyágite crystals, seen in white, at the top of the post.

Another of her discoveries has been a rare lead-bearing silicate mineral called hancockite, which was found on a specimen supposed to be from ‘Glen Coe, Argyllshire’. The orange-red crystals are less than a millimetre long, and hancockite is known from only one place in the world: Franklin mine, in New Jersey, USA.

It seems our specimen comes from Franklin mine too, and is the first sample of hancockite in the Museum’s collections. So both specimens must have had their labels muddled up in past centuries.

I have really enjoyed learning more about mineralogy during my time here at the Museum. Realising that something is far more exciting than it first seemed is definitely a great way to end this internship!

Monica Price – Head of Earth Collections

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Mad about minibeasts

 

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Minibeasts are everywhere, and there are millions of them! These little invertebrates can be found in every environment on the planet.

Woodlands are great places to look for minibeasts as they are home to a large number of specialist species. This is because a wood contains a diverse range of habitats including dead wood, open areas such as grassy glades, the tree canopy and understorey layers where the smaller woodland plants can be found, as well as leaf litter and rich soils.

If you fancy going on a hunt for some minibeasts yourself, here are a few things you could look for in different kinds of habitats.

Dorcus parallelipipedus
Lesser Stag Beetle (Dorcus parallelipipedus)
Lesser Stag Beetles, like their larger relatives the Greater Stag Beetles, are dependent on decaying wood. The larvae can take two or more years to develop in the old wood and the adult lives for about two years. They are mainly active at night but can sometimes be seen by day or tempted out in the early evening by a sweet treat such as maple syrup.

Beautiful butterflies such as the Speckled Wood, Brimstone and Hairstreaks can be found flitting around in woodland glades, visiting flowers and looking for mates.

Speckled Wood
Speckled Wood Butterfly (Pararge aegeria)
Bumblebees are also frequent visitors. There are 24 species of bumblebee in the UK but there are only about eight that are commonly seen. When a bumblebee has visited a flower it leaves a chemical message to tell the other bumblebees that it has been there and not to bother investigating as the nectar has already been plundered.

There’s plenty more to discover too, from pseudoscorpions to the importance of aphids in the food chain of many ecosystems…

If you’d like to learn more then come along to Wytham Woods in Oxford at 10am on 22 July or 26 August and help us see what we can find in a 90-minute guided walk around the woods. The event is free, family friendly (ideal for children 7+) and an expert will be on hand to help with minibeast identification too. For more information and to book email ceri.watkins@oum.ox.ac.uk.

Ceri Watkins – TCV Natural Talent Trainee

 

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Dodo Roadshow – #ILoveMuseums

DodoNeedsYouWriting

So, it’s been one hell of a trip man. In a bid to shake off the cobwebs and ‘find myself’ I set out on an epic Roadshow from Land’s End to John O’Groats. The Dodo Roadshow, no less: all mine, but also everyone else’s…

I found so much more than I could have bargained for: monuments to nature, relics of industrial might, extinctions recent and past, and a whole load of philosophical perspective. I am a changed Dodo.

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And this is what I have learnt – museums are powerful, important and brilliant. They are full of wonder, learning, curiosity, surprising viewpoints and fun discoveries. To find out why, read my full story in the cartoons below (thanks to Chris Jarvis for capturing the essence).

And then I need your help. I need you to head on over to ilovemuseums.com and put your name to the campaign. I may be an old bird-brain, but I know that we should stand up for our museums – I’ve seen ’em man and they’re really something special. Squawk!

The Dodo.

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Dodo Roadshow: RSPB Loch Garten

Richard Crossley
Capercaillie from the Crossley ID Guide Britain and Ireland – Creative Commons

To mark our selection as a Finalist in the Art Fund Prize for Museum of the Year 2015 we’re embarking on a unique and ambitious tour of the country – the Dodo Roadshow.

Beginning at Land’s End on 8 June and concluding in John O’Groats one week later, the famous Oxford Dodo will visit more than 20 museums and galleries along the way. At each stop the Dodo will ‘interview’ one of the venue’s star objects.

RSPB Loch Garten: Capercaillie

RSPB Loch Garten 850pxSo, tell me about yourself – who are you and where do you come from?
I am a capercaillie and my home is the magnificent National Nature Reserve, Abernethy Forest. I am very lucky to live here, as it is the largest remnant of the Caledonian pine forest, which is full of tasty blaeberry for me and my chicks to feed on. My name means ‘horse of the woods’ in Gaelic: some humans think that when I do my impressive display call it sounds like the hooves of horses on cobbles.

What is it that makes you so special?
I’m special for many reasons! Where do I start? I’m very rare here in Scotland. There are only around 1,000 of me left but back in the 1970s there were as many as 20,000 of capercaillies like me! I’m also very good at a special dance called lekking. I strut around, with my beautiful tail fanned up and I make a sequence of click and pop sounds, showing off to the ladies and trying to outdo the other male capercaillies at the lek. I’m very beautiful too, with a striking red eye marking, and glorious iridescent feathers on my front. I’m also the largest grouse in Scotland.

Who looks after you in this place?
Here at Abernethy Forest I’m looked after by the RSPB. They know how special my dance is and they know how upset I get if my lek is disturbed by curious humans who want to take a peek at my fancy moves. Therefore, they ask people to watch me lek at a safe distance, hidden from my view by a hide at a special event called Caper-Watch. The RSPB also know that I fly into deer fences which can kill me, so they make sure there are no deer fences here at Abernethy. Something else the RSPB is doing to look after me is making my home bigger and better, by expanding the forest and opening up the canopy in parts of the forest where it is too dense.

Do you remember life before RSPB Loch Garten?
I don’t remember but my ancestors tell me lots of stories about before Abernethy was a nature reserve. They tell me about how people used to shoot capercaillies!  And that there was less blaeberry around for them to eat.

What does the future hold for you?
The future looks uncertain for me; there aren’t many of us capercaillies left now…and we have gone extinct in Scotland before! But the RSPB is doing lots to help me here at Abernethy, and visitors too are helping by keeping their dogs on leads during the breeding season, coming to Caper-Watch to see me without disturbing me and joining as RSPB members. So hopefully things will get better for capercaillies.

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