Pumas in Patagonia started feasting on penguins — but now they're behaving strangely, a new study finds

Puma with penguins caught in photograph from camera trap.

Pumas in Patagonia are preying on penguins — and it's changing how the big cats interact with each other.

The pumas in question reestablished themselves in an Argentinian national park that housed a penguin breeding colony — and the cats promptly began eating the birds. Now, it turns out the normally solitary cats that eat the penguins are tolerating each other more often than expected, new research published Wednesday (Dec. 17) in the Proceedings of the Royal Society B reports.