30 junio 2015
A pair of paleobiologists have determined that the world’s most numerous and diverse vertebrates — ray-finned fishes — began their ecological dominance of the oceans 66 million years ago, aided by the mass extinction event that killed off dinosaurs.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DK78sYWDJ7I/150630100607.htm
