In the balmy tropical Atlantic, everything from dolphins, manatees and whale sharks to sunbathing jellyfish thrive in the Caribbean's warm, sheltered waters, fringed with coral reefs and rich mangrove forests. But extreme heat in Africa unleashes terrifying hurricanes, causing chaos across the region.
While most of the series has focused on conflict, this episode is all about co-operation. The suitably named social spiders spin one enormous, 30m web for the whole colony, a queen bee rules her hive with a strict hierarchy and some green ants show great team spirit to help build a nest together. There are no broken societies here. David Attenborough shifts the focus to bugs that prefer cooperation rather than conflict. They include burrowing cockroaches, the suitably named social spiders - which share a 30-metre web.
Following the success of Helen Macdonald's bestselling novel of the same name, H is for Hawk: A New Chapter is an intimate and personal journey. After the loss of her father, Helen trained the hardest bird in falconry, a goshawk. The cathartic experience helped her to grieve and now she is ready to do it again, but this time she hopes it will be her wings to somewhere new. In this beautiful and moving film, Helen trains a new bird and follows a wild goshawk family at the nest, getting closer than ever before to these fiery eyed birds of prey.
Known as "the roof of Africa," the Simien Mountains offer a glimpse at some of the rarest creatures on the continent. Among plunging cliffs that give way to lush greenery and foggy skies, learn how native wildlife like the magnificent walia ibex and cunning Simien wolf have adapted to this remote alpine terrain.
Richard Hammond concludes his look at miracles in the natural world by discovering some incredible animal super-powers. Creatures that can create slime as strong as steel, survive massive extremes of temperature or even turn invisible. Animal super-powers that have inspired scientists and engineers to create brand new human inventions that could change the way we live. He discovers how the husky's paw can help American footballers; how a strange eel-like creature with a skull but no skeleton might be the next best thing to a spider; how the kingfisher could revolutionise air-sea rescue; and how the cuttlefish has enabled a military tank to pretend it's a small family saloon.