xplores the various methods of animal reproduction, highlighting the dependency of young animals on their parents, particularly in mammals, birds, and amphibians. It explains both asexual reproduction ...

One of the most debated hypotheses in evolutionary biology received new support today, thanks to a study by a scientist at the University of Nevada, Reno. Elissa Cameron, a mammal ecologist in the ...

“Perhaps more than any other class of organisms on Earth, female mammals possess extraordinary control over their reproduction,” begins the introduction to Mammalian Reproduction: A Female Perspective ...

A viral gene embedded in the sheep genome plays an essential role in the growth of the animal's placenta, according to a study of impregnated sheep. The result strengthens the case that similar viral ...

Why do lifespans vary across different species? A female elephant can live up to 80 years, but usually only has a few calves during her lifetime. A mouse, on the other hand, lives for a few years at ...