partners

For decades biologists still think that men are more mature and women are more careful when choosing partners. But a new study shows that truth is not that simple.

The powerful hooves are raised high, the nostrils extending the full width of two wild horses Stallions begin to enter the war of authority to be able to mate each spring every

Researchers from the University of Ecuador's Christian University have discovered a new frog, which has a particularly noisy sound and grows in tropical forests.

A recent study by scientists from Stirling University (UK) shows that the hormone oxtrogen ...