Every fall, thousands of male tarantulas abandon their burrows and roam the American Southwest, but the word "migration" ...

A major transition in evolution is the shift from asexual to sexual reproduction in early organisms. But why would a yeast ...

As companion animals become part of the family, understanding dog-parent guilt can help mental health professionals recognize ...

A new study of wild bats reveals that an animal's immune system is shaped by more than its need to fight infections. Researchers from the University of Maryland have found that sex, age and ...