A machine learning analysis of wild lion audio reveals they have two roar types, not one. This insight might help detect where lions are declining.

Researchers used artificial intelligence to analyze more than 3,000 recordings of African lions and found that the animals ...

To save the world's remaining wild tigers, WWF is not asking people to stand-up and be heard - but asking them for a roar of support. Bengal tiger (Panthera tigris tigris) With tigers in the wild ...