Platypus Evolution Was Slowest of Mammals

May 2008
Australasian Science;May2008, Vol. 29 Issue 4, p10
The article reports that a fossilized Teinolophas jawbone revealed that platypus have evolved more slowly than any other mammals. Dr. Tom Rich and Professor Patricia Vickers-Rich of Museum Victoria in their paper "Proceedings of the National Academy of Sciences," speculate that the slow evolution explains why there are only 5 monotreme species compared with more than 5000 other mammals. Dr. John Long, head of sciences at Museum Victoria said that several kinds of mammals lived in the age of dinosaurs, but only the platypus live up to this day.


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