The apparent docility and friendliness of “smiling” sloths have made them tourist darlings, but have also put a target on their backs. The rise in trafficking of these animals led the governments of ...

Here are five animals that have turned inactivity into an evolutionary flex.

Heather Ewart does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...