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- Long before whales, the oceans of Earth were roamed by a very different kind of air-breathing leviathan. Snaggle-toothed ichthyosaurs larger than school buses swam at the top of the Triassic Period ocean food chain, or so it seemed before paleontologist Mark McMenamin took a look at some of their remains in Nevada. Now he thinks there was an even larger and more cunning sea monster that preyed on ichthyosaurs: a 'kraken' of such mythological proportions it would have sent Captain Nemo running for dry land.
There's a lot of speculation here, and the article isn't too long, but if any of it is correct, it makes the history of life on our planet that much cooler.