The team learns about orcas, how they hunt and communicate, and their diet.

Destiny introduces Dory to her neighbor, Bailey, a beluga whale who claims to have lost his ability to find objects using sound waves. Bailey believes that his head is swollen, but Destiny states that his head is naturally that big because of his species.

George and some friends are having fun on the beach. When they go swimming, they find a dolphin that can help find things underwater using echolocation.

Zach Varmitech spies on the Wild Kratts while they're traveling in the Amazon rainforest. They explain that the rainforest has the highest biodiversity out of any land habitat: it's home to 10% of Earth's creatures. They define it as the amount of plants and animals in a region.

This clip provides an overview of rainforests. It describes their age, unique characteristics, importance to the Earth's overall ecosystem, and importance to modern medicine. It also discusses the recent threat to these habitats: deforestation due to modern industry demands.