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Arthropods Use “Natural Anti-Freeze” to Survive Cold

Dr Melody Clark of the British Antarctic Survey recently presented two bizarre adaptations that arthropods use to stave off cold temperatures. At the Society for Experimental Biology’s Annual Meeting in Glasgow last week, Clark showed how the Onychiurus arcticus, an Artic arthropod, copes with the freezing winters. As the surrounding temperatures fall, the Onychiurus arcitus literally dries up, leaving what Clark describes as “a normal looking head, and a body which looks like a crumpled up crisp packet when it is fully dehydrated. But add a drop of water and it all goes back to normal!”


Onychiurus arcticus…Just add water!

She also presented the Cryptopygus antarcticus, another Arctic arthropod which accumulates anti-freeze compounds in its body that allow it to withstand temperatures as low as minus 30-()()C (minus 22-()()F).


The Falkland Islands’ beloved Cryptopygus antarcticus. So beloved, in fact, they put it on a stamp!

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By Orac

Orac is the nom de blog of a humble surgeon/scientist who has an ego just big enough to delude himself that someone, somewhere might actually give a rodent's posterior about his copious verbal meanderings, but just barely small enough to admit to himself that few probably will. That surgeon is otherwise known as David Gorski.

That this particular surgeon has chosen his nom de blog based on a rather cranky and arrogant computer shaped like a clear box of blinking lights that he originally encountered when he became a fan of a 35 year old British SF television show whose special effects were renowned for their BBC/Doctor Who-style low budget look, but whose stories nonetheless resulted in some of the best, most innovative science fiction ever televised, should tell you nearly all that you need to know about Orac. (That, and the length of the preceding sentence.)

DISCLAIMER:: The various written meanderings here are the opinions of Orac and Orac alone, written on his own time. They should never be construed as representing the opinions of any other person or entity, especially Orac's cancer center, department of surgery, medical school, or university. Also note that Orac is nonpartisan; he is more than willing to criticize the statements of anyone, regardless of of political leanings, if that anyone advocates pseudoscience or quackery. Finally, medical commentary is not to be construed in any way as medical advice.

To contact Orac: [email protected]

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