Added: Oct 6, 2008
Author: a01011399
Duration: 3:8
Evolutionary theory predicts that snakes evolved from lizard-like creatures, thus snakes lost their legs slowly and gradually. If this prediction is true we would expect to find the following fossils in the fossil record.First (older): snakes with functional legsSecond: snakes with vestigial legsFinally: legless snakes, (modern like snakes)However we dont find them in that order, according to evolutionary dating methods, snakes with vestigial legs predate snakes with functional legs. Snake with vestigial legs: (92 Myo)´´ But it is the unmistakable leg bones - fibula, tibia and femur - that catch the eye. The stumpy hind-limb is only 2cm (0.8in) long, and was presumably utterly useless to the animal in life.´´ ´´ he 85cm-long (33in) creature, known as Eupodophis descouensi, comes from the Late Cretaceous, about 92 million years ago.´´http://news.bbc.co.uk/2/hi/science/nature/7339508.stmSnake with functional legs (90 million years old)´´he fossil was found in a deposit from the late Cretaceous period and Zaher says the snake is at least 90 million years old.´´´´ has a well-defined sacrum supporting a pelvis and functional hind legs outside of its ribcage.´´http://www.newscientist.com/article/dn9020-oldest-snake-fossil-shows-a-bit-of-leg.html
Channel: Tech
Tags: a01011399 challenge creation creationism creationist evolution evolutionism evolutionists legs snakes vestigial
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