Mammoths emerge from the melting (and therefore increasingly inaccurately named) permafrost quite regularly. Some of these mammoths are in astonishingly good condition.
Now, it takes a long time to freeze a mammoth right through, so just why are these mammoths in such good shape? Why haven’t their innards gone off while the frost was working its way through from the skin?
It turns out that these mammoths were preserved before they froze. If they fell into a bog, poor things, then the lacto bacilli (they're rod-shaped bacteria) present in the water pickled the mammoths like huge hairy onions.
One very brave scientist, Dan Fisher of the University of Michigan, has proved this by chucking chunks of meat into a pond and then coming back much later and eating them.
A great, brave man, Dan Fisher.
I’m happy to announce he survived the experiment.
PS: At the moment there’s no room in my fridge for so much as a mouse!