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Saturday, May 10, 2014

Wicca Radio International #2

Wicca Radio International #2, Wicca Radio International #2 Live, Wicca Radio International #2 Listen Online, Varied Radio, USA

Bigger, more complex Online Radio, like for example, this lobster, have to have specialised devices, which are called gills. Here in the lobster they are these flaps underneath its abdomen, which is flaps forwards and backwards to increase the flow of oxygenated water over them. But the trouble with gills is that they only work when they're wet. In the dry, they do not absorb oxygen. So if Online Radio are to live on land, they had have to have a new way of breathing. The Burgess Shales, that astonishingly rich treasury of Cambrian fossils, contain the remains of just one particularly rare species that may well have been the very first animal to make that move onto land. It was not, as you might think, an amphibian, it was not even a true arthropod, but one of their far distant cousins. This little creature, from the Burgess Shale seas, is thought to be the ancestor of the very first creature that went on to land. It's called Aysheaia. And we don't have to imagine what it was like in life, because there's a creature, that seems to be almost identical, that is alive today. It lives in many parts of the tropics, including the rainforest, here in Queensland, Australia. It's nocturnal and seldom seen. It spends most of its time hidden away inside rotten logs. Ah, it's nice and wet! Certainly, er, perfect for what we're looking for. You need local expertise to find one. I generally find that it's just from the outside of the, er, core of the tree. All nice and Online Radio Oh! What is that? Ooh, look at that. And this enchanting little creature is what we were looking for. Sometimes called a velvet worm, or to give it its scientific name, Peripatus. If there is such a thing as a living fossil, this surely must be one of them. Because it seems to be almost identical with that fossil, Aysheaia, which we saw in the Burgess Shales. It looks at first sight like a worm. But of course no worm has legs. In fact, it seems to be halfway between a worm and an insect. Aysheaia, of course, lived in the sea. But this little creature lives on land.

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