Season 1

In this watery world, many creatures rely on size, speed, and strength to survive — but some have evolved another trait, perhaps the most powerful of them all: family.

Animals depend on more than just food for survival. Like us, they need shelter to protect themselves and their young.

The warm, sunlit waters near the equator hold some of the most diverse ecosystems on the planet — coral reefs are home to a quarter of all marine species found in the oceans.

Sharks have long been the symbol of everything fearful in our oceans — but there is far more to sharks than meets the eye.

All creatures, great and small, are driven by a single goal: to pass on their genes and give their young the best chance of success.

For thousands of years, the mysteries of the ocean and its hidden creatures have inspired countless myths and legends.