Male green treefrogs attract mates with loud calls, but new research shows parasites can subtly change those signals.

"Each spring, all adults of the species migrate to one site, the Colorado River Delta in the uppermost portion of the Gulf [of California], to form one spawning aggregation of several million fish," ...

Cats are fascinating creatures that we can’t help but love, even when their behavior leaves us puzzled. During mating season, cats can become quite vocal, especially a female in heat. Many people ...