The Maldives are the lowest country in the world-and getting lower, due to rising sea levels. Especially at risk is the island's reef system, the biggest in the Indian Ocean, with over 200 types of coral and thousands of tropical fish species. Witness the race to preserve this marine paradise from the ravages of climate change.
Fish dominate the planet's waters through their astonishing variety of shape and behaviour. The beautiful weedy sea dragon looks like a creature from a fairytale, and the male protects their eggs by carrying them on his tail for months. The sarcastic fringehead, meanwhile, appears to turn its head inside out when it fights. Slow-motion cameras show the flying fish gliding through the air like a flock of birds and capture the world's fastest swimmer, the sailfish, plucking sardines from a shoal at 70 mph. And the tiny Hawaiian goby undertakes one of nature's most daunting journeys, climbing a massive waterfall to find safe pools for breeding.
Within the quiet confines of your home, wild things are afoot. The great struggle to survive, the drama of life and death, the cold calculation of the hunter and the anxiety of the hunted and it goes on all around you. In the Great Indoors, every corner is a potential lair, every carpet a dense forest, and the wide spaces of your kitchen, an open savannah where the food is abundant, but so is the danger. A number of creatures fly in and get trapped; others may enter to dine and dash, but some will be found nowhere else but safe and sound at home in your home. So when you trap that house spider and decide to set it free outside, you may in fact be dooming it to death in a world it's never known.