For a small number of animals, reproduction marks a biological endpoint rather than a stage in an ongoing life cycle. Death ...

Her obsession with dragonflies began with the Marshall fire that destroyed her home in 2021. Sarah Nalley, who did her undergraduate work in evolutionary biology, already planned to dedicate her ...

All animals need sleep. When humans or animals don't get enough, it can lead to trouble paying attention, irritability, and other ill effects. And yet, researchers reporting in the journal Current ...

Get ready for Valentine’s Day by learning how zoo matchmakers use science to “swipe right” for conservation. Mike Bock Male Andean bear Quito (above) has fathered two cubs at the Smithsonian’s ...