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.

Using AI to distinguish between full-throated and intermediary roars could have benefits for lions’ conservation.

Years ago, I was sitting in a friend’s living room with their cats when a lion documentary came on. A little bit of me wanted to change the channel – I worried the dainty pets felt a bit of “look what ...