Class aves
(Science: ornithology, zoology) a biological class that is composed of all the birds (for example, penguins, pigeons, eagles, canaries, vultures, etc.)
Dictionary > Class aves
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Mammalian Ancestors
Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Over time, mammals have diversified into the placentals and the marsupials. Get a better understanding of how the mammals became dominant based on natural selection and geological events as elucidated in this tutorial...