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Monday, May 12, 2014

Graceland Radio

Graceland Radio, Graceland Radio Live, Graceland Radio Listen Online, Oldies Radio, USA

One sort are millipedes, which today grow as long as that and live on vegetation and rotting wood, harmless vegetarians. But there's also another multileg creature, which is a much more difficult customer. This is one of them. A centipede. A very formidable hunter, with a powerful bite, and some centipedes have bites that are lethal to human beings. What kind of a bite this one has, I don't know. But when I let him out I shall do so very carefully, because I don't propose to find out. Come on. So multilegged arthropods invaded the land and became more successful than ever. Back in Scotland, there is impressive evidence of just how successful they became. This is a small fishing village on the East Coast of Scotland called Crail. Nothing particularly strange about it, you might think Online Radio until, that is, you go down to the shore. And then you can see something that is really extraordinary. Standing here and there on the beach are fossils, not of Online Radio, but of plants. This huge circular stump looks just like the base of a tree. And indeed that is what it is, or rather, what it was, million years ago. But it wasn't a tree like trees we know today. It was related to the small plants that are alive today called horsetails. But this tree grew to feet. It was immense. When they were alive, during a period called the Carboniferous, long after the Cambrian, this whole area was very different from the windswept coastline of today. This was a time when the continents of the world were grouped together and forests were widespread. So much plant life was pumping out oxygen that the composition of the atmosphere began to change. This had a profound effect on animal life. In the forest that was growing near Crail, the ancient trees were rooted in a sandy swamp. And on the expanses of sand that stretched between those huge trees, sand that's now turned to this sandstone, there are tracks. Tracks that come in pairs, there's one pair that goes up there. There's another pair that goes up here. And when you look at them in detail, you can see, particularly on this pair, that each track has a number of dimples in it.

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