A female northern elephant seal with her pup on the beach at Año Nuevo Reserve. (Photo by Dan Costa) Changing environmental conditions may threaten marine mammal populations by making it harder to ...

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 ...

Which group of mammals has the more 'primitive' reproductive strategy -- marsupials, with their short gestation periods, or humans and other placental mammals, which have long gestation periods? For ...

FILE - In this July 25, 2011, file photo, a group of wild horses cools off in the ocean breeze on the beach in Corolla, N.C. As North Carolina braces for Hurricane Florence, some tourists and ...

In a world first, scientists have created mice with two fathers, capable of having offspring of their own. It’s a huge step forward for our understanding of mammalian reproduction, and could, in ...

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Asexual reproduction, in which females reproduce without males by cloning themselves, has been documented in multiple species ...

A research group has found that in fruit flies (Drosophila melanogaster), circulating fructose derived from dietary sugar is needed for enhanced egg production after mating. In this species, ...

My 2013 book, How We Do It, addressed an enduring mystery in mammal reproduction: “It is often claimed that the word ‘testify’ comes from an ancient Roman custom in which a man would clutch his testes ...

Changing environmental conditions may threaten marine mammal populations by making it harder to find prey, and a new study shows how small, gradual reductions in prey could have profound implications ...