Marker says the sperm bank at the Cheetah Conservation Fund she founded in the southern African nation is a “frozen zoo” of ...

Thanks to more than three decades of monitoring, researchers at the University of Granada reveal how human absence during the ...

How do animals decide when to fight and when to walk, fly, slither, or swim away? Most research on animal conflict has focused on the short-term costs of single interactions, but a pair of behavioral ...

For a long time, having children has been a young person’s game. Although ancient records are sparse, researchers estimate that, for most of human history, women most typically conceived their first ...

People have a complicated relationship with other species. Sometimes we treat them as livestock and prey, sometimes we treat them as laboratory experiments, and sometimes we treat them as family ...