The team are on a quest to find a fish that talks and the candiru - a parasitic catfish notorious for invading the human body. Kate heads deep into the jungle to film a rare freshwater dolphin and track down the elusive giant otter.
Explore how a new understanding of nature is helping us find surprising ways to fix it. From the Pacific Northwest to Yellowstone to Scotland, scientists, citizens and activists are restoring the environment, benefiting humans and animals alike.
David Attenborough employs the latest technologies to explore the violence, rivalries and deadly weaponry existing within the world of bugs. This first episode examines the survival tactics of its terrifying residents including killer ants, trap-setting spiders and beetles with the ability to shoot boiling chemicals at their enemies.