Some animals form lifelong pair bonds that run deeper than simple mating. These connections shape how they live, move, and ...

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 ...

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

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 ...