Three episodes of the television series exploring the world of animals.

Enter stories of the most unlikely cross-species relationships imaginable: a chimp bottle-feeding tiger cub, a giant tortoise snuggling with a baby hippo, a black crow parenting a meerkat. Look at these remarkable relationships first hand, and through caregivers, biologists, and animal behaviorists. Explore what they suggest about the nature of animal emotions.

Dogs do it. Millipedes do it. Dinosaurs did it. You do it. I do it. Octopuses don't (and nor do octopi). Spiders might do it: more research is needed. Birds don't do it, but they could if they wanted to. Herrings do it to communicate with each other. In 2017 zoologist Dani Rabaiotti's teenage brother asked her a most teenaged question: Do snakes fart? Stumped, Rabaiotti turned to Twitter. The internet did not disappoint. Her innocent question spawned...

People have lived with animals for a long time. When people first began living in cities, do did animals. Find out more about the animals we live with. There are a lot more of them than you think.

"For the first time, a historian of science draws evidence from across the world to show how humans and other animals are astonishingly similar when it comes to their feelings and the ways in which they lose their minds. Charles Darwin developed his evolutionary theories by looking at physical differences in Galapagos finches and fancy pigeons. Alfred Russell Wallace investigated a range of creatures in the Malay Archipelago. Laurel Braitman got her...