A study analysing hundreds of social media videos has described many interactions between whales and dolphins as "playful". Researchers say the playful interaction is important for the survival and ...

Every other Friday, NHPR's Outside/In team answers a listener question about the natural world. This week’s question comes from Jenna in Cupertino, Calif. How do plants communicate with each other?

A new study has suggested a species of marine animal may communicate with each other by waving. Researchers from École Normale Supérieure in France have found evidence of cuttlefish possibly ...