The team meets up with a conservation group looking at the super cool sucker-footed bats.
The team heads west to Ranomafana, Madagascar's most famous national park. To get there they have to kayak down river and work as a team for the first time. They then split into teams and 'bio blitz' two areas - one that has once been disturbed by people and the other entirely pristine - to see which area has the most wildlife.
The kids want to find out if a national park can not only benefit the wildlife but the local people too.
The team heads north towards Ankarafantsika wildlife reserve, where they hope to find a way of stopping animals from becoming extinct. They meet the conservationists running captive breeding programmes for two reptiles that are found nowhere else on Earth.