Stingrays give birth to live babies, but they aren't mammals. Learn all about these fascinating fish that live in oceans and ...

Animals possess circadian clocks, or 24 h oscillators, to regulate daily behavior. These typically take their cues from the periodic change of sunlight and darkness. However, many animals are also ...

Optical illusions aren't just for humans; animals also experience and utilize them for survival and reproduction. From ...

Reproduction in animals varies from species to species. Some types of reproduction, like parthenogenesis, are more unusual than others. This reproductive method requires only one individual rather ...