Missing link
Scientists have found a "missing link' between fish and land animals that include the prehistoric ancestors of humans. The discovery of the new animal, called Tiktaalik (meaning a large freshwater fish), was reported in Nature (Vol 440, No 7085, April 6, 2006).
Found in Ellesmere Island in northern Canada, the fossil shows how fins on freshwater species began transforming into limbs some 370 million years ago. "This animal represents the transition from water to land
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