Counting down from twenty, this showcase reveals nature's top builders, highlighting the most ingenious animal craftsmanship and ultimately crowning the master builder of the animal kingdom.

With nature undergoing a continuous cycle of change, various species of animals adapt to the changes to endure the harsh environments of their habitats.

Whether it is flying, leaping or living at extreme altitudes, it's not just birds that enjoy life at the top. We reveal the top 20 contenders living the high life in the animal kingdom.

Killed or be killed as we uncover mind blowing tactics, ingenious team work and unrivalled speed, stamina, and stealth while revealing the top twenty hunters in the animal kingdom.

Whether it's a powerful punch or a toxic touch, extreme endurance or stupendous speed animals are built to survive.

The filmmakers reveal the survival skills of the toughest animals, from foxes to fish and enormous mammals fighting for their breeding rights.