NatGeo Wild

'S1/E2 - Masterminds'. Deeply curious, strategic and super smart - the octopus is one of nature's ultimate problem solvers.

A marine ecologist, a former Royal Marine commando, and an evolutionary biologist uncover how one of the largest bull sharks ever caught grew to become a giant.

'S1/E3 - Snakes'. When on the hunt, snakes judge the very instant that separates life from death to perfection. Venomous snakes are one of the most lethal animals on the planet.

'S1/E2 - Masterminds'. Deeply curious, strategic and super smart - the octopus is one of nature's ultimate problem solvers.

'S1/E3 - Social Networkers'. The octopus was thought to be nature's ultimate loner - now its secret social life is revealed.

'S3/E6 - Deadliest Catch'. Snake catcher Simon and herpetologist Siouxsie's business poses life-and-death situations, and every capture has its dangers.

'S4/E1 - The Wedding Crasher'. Simon and Siouxsie rush across Snake City to capture Africa's largest cobra in a pool, a python gatecrashes a wedding, and a black mamba terrorises a neighbourhood.

'S4/E3 - Psycho Mamba'. Simon and Siouxsie hunt down a frighteningly fast black mamba in a cluttered kitchen and a Mozambique spitting cobra under a bath that's showering Simon with venom.

'S1/E2 - Reptiles'. Despite their ancient appearance, reptiles are creatures full of surprises and sophistication. Much like dinosaurs, reptiles are hugely efficient hunters.

'S1/E7 - Spiders And Scorpions'. It is possible that there are no better-equipped hunters on Earth than arachnids, endlessly surprising creatures that form a hugely diverse group of gifted predators.

'S1/E3 - Snakes'. When on the hunt, snakes judge the very instant that separates life from death to perfection. Venomous snakes are one of the most lethal animals on the planet.

'S1/E4 - Wolves and Jackals'. Wolves are a supreme example of co-operative hunting, their efficiency being based on a hierarchy within a pack that demands loyalty.

'S1/E5 - Bears'. The turning of the seasons provokes profound changes in bears' bodies, allowing them to endure the harshest conditions.

'S1/E3 - Sexy Beasts'. Ryan reveals a guide to romance and reproduction, underdog style.

'S1/E1 - Ocean's Weirdest: Seas Of Love'. Dive deep into the most misguided attempts to find love that the ocean's animals have to offer.

'S1/E1 - Asia's Weirdest: Quest For Love'. Join Asia's misfits as they employ the weirdest adaptations in their quest to find a partner and raise a family.

'S1/E3 - Sexy Beasts'. Ryan reveals a guide to romance and reproduction, underdog style.

'S3/E6 - Deadliest Catch'. Snake catcher Simon and herpetologist Siouxsie's business poses life-and-death situations, and every capture has its dangers.

'S4/E1 - The Wedding Crasher'. Simon and Siouxsie rush across Snake City to capture Africa's largest cobra in a pool, a python gatecrashes a wedding, and a black mamba terrorises a neighbourhood.

'S4/E3 - Psycho Mamba'. Simon and Siouxsie hunt down a frighteningly fast black mamba in a cluttered kitchen and a Mozambique spitting cobra under a bath that's showering Simon with venom.

'S1/E3 - Sexy Beasts'. Ryan reveals a guide to romance and reproduction, underdog style.