A first: A (nearly) complete road map for the evolution of placental mammals
...otremes, the egg-laying mammals, which include the platypus and the echidna. Rather than working in the lab or field, the UF researchers used the library and the Internet. In collaboration with Michele Tennant, assistant university librarian in the UF Health Science Center Libraries, the researchers identifie......ports the Marsupionta hypothesis, which places the platypus and kangaroo together. This controversy has lasted...re than two centuries since the discovery that the platypus lays eggs. "Our study is the first to provide statistically unambiguous results in favor of clas...