Animals

Leather is part of many of our wardrobes, but producing it creates carbon pollution and drives deforestation. Thanks to science, sustainable lab-grown leather could soon be a reality. Entrepreneur Andras Forgacs explains how it works.

Every insect you see is a truly unique individual, according to zoology researcher Melinda Babits. She explains why and how she's studying the personality traits of bugs -- particularly, firebugs -- to find out more.

Author and conservationist Lucy Cooke went to a remote Caribbean island to track down this most elusive of sloths. She shares a look at their adorable faces and their peculiar lives.