Bella finds out all about some of the smallest mammals in the UK - mice! Chantelle visits a wildlife group to meet Sean, Mossy, Gabriela and Cara and help them release harvest mice into the wild. Rory and his son Sandy are at a farm looking for mice.

Chantelle and Rory’s fact files explain about prehensile tails, where mice find food, how many babies they have and whether or not they hibernate. It’s also time to find out what mice do to help the planet! This episode’s Teeny Tiny Task is to make a tennis ball house for harvest mice. Show less