The sanctuary's 'Lothario' Randy succumbs to an infection, a new arrival gets an almost presidential welcome, and the resident scientist unravels the secrets of sloth attraction

The sanctuary team members work to save a poisoned sloth. They also try to find a much-loved toy, and the resident scientist attempts to pin down the secret of sloth 'manliness'

Answers to more fun animal questions, such as how a squirrel is able to take on a dangerous rattlesnake, what makes eagles' eyes so powerful and why the planet is overrun with bugs

Animal questions answered, including why pandas are black and white, whether parrots know what they are talking about and how electric eels manage to not electrocute themselves

James Giuliani takes Princess to the vet and is asked to make a tough decision. Plus, at his school reunion, the former mobster is confronted by a face from his past

The boys take James Giuliani to Coney Island in Brooklyn to celebrate his birthday. Plus, he rescues his messiest and most unusual animal yet

The groups leave their cabins to hike out of the area and board the plane that will return them to civilisation, but face the threat of dehydration and freezing along the way

Wayde King tries to keep his ATM team motivated by sending them to a boot camp in the hope they work together to pull off the creation of two challenging salt water tanks

Comedian Tracy Morgan calls on the partners' help for a second time, to make a new home for his beloved octopus - and he welcomes them into his house as lodgers for a few days