Evolutionary psychologists suggest this ratio may act as a cue for health and fertility, signaling to potential mates that a ...

These diverse pre- and post-zygotic barriers are of great importance to speciation biologists because they determine how reproductively-isolated populations are from one another, which indicates ...

Seventeen new species of plant bugs—a group of insects with a strawlike mouth used to feed on plant and animal matter—have ...

Here’s what you should do if you encounter an invasive dog-sized lizards in South Carolina, Department of Natural Resources ...

But some males who have fathered a number of infants in a group stay in that group for a considerable period after they are reproductively successful; this may result in benefits for their immature ...

Low-status females have trouble raising males that are big and strong enough to climb the status hierarchy and thus focus on females who are more reproductively successful. Offspring of dominant ...

By the time the salamanders reached the southernmost part of California, the separation had caused the two groups to evolve enough differences that they had become reproductively isolated.

I headed to a popular seafood bar where I found an impressive selection of oysters from New England and a few from the Gulf ...

sufficient time to reproductively compensate for offspring lost due to high juvenile mortality, and (3) decreased reproductive uncertainty due to high variation in juvenile mortality from one ...

Findings suggest they may be evolutionarily, reproductively, and demographically distinct from other Pacific harbor seal populations sampled across the Pacific, including Japan, the Commander ...

The $1.3 billion project to improve, deepen and widen Port Everglades is still in limbo because of the millions of precious ...

Third, they become reproductively separated such that they cannot interbreed and exchange genes. Under normal conditions, genes in a given population are exchanged through breeding, so that even ...