Mammalian evolution. Placentals' family tree drawn and quartered.
Pennisi
E
E
D000349:Africa; D000818:Animals; D001499:Bayes Theorem; D005075:Biological Evolution; D005580:Fossils; D016678:Genome; D008322:Mammals / Q000145:classification* / Q000235:genetics*; D010920:Placenta; D013020:South America; D013995:Time