From the ancient megalodon to Great Whites, get up close and personal with the apex predators of the deep.

By examining countless Megalodon teeth from around the world, scientists have concluded that "meg" was able to achieve its gargantuan proportions by starting its carnivorous diet early -- in the womb.

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This episode examines Megalodon teeth from around the world to uncover how the giant shark reached its immense size by beginning a carnivorous diet in the womb. Along the way, scientists piece together clues about its anatomy, hunting behavior, and extinction, turning fossil fragments into a sharper portrait of one of the ocean's most formidable predators.

Fossil teeth reveal how an ocean giant grew before birth.

Scientists have concluded that "meg" was able to achieve its gargantuan proportions by starting its carnivorous diet early -- in the womb.

Decoding Megalodon

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Go behind the scenes of wildlife filmmaking and join Andy Casagrande, as he gets up close and personal with some of the most iconic sharks.

Join filmmaker Andy Casagrande behind the scenes of shark filmmaking as he gets startlingly close to great whites, hammerheads, sand tigers, and tiger sharks. Using advanced cameras, including custom-built rigs, the series captures how these animals hunt, move, and conserve energy while connecting each encounter to active shark research. Sign up to see rare footage that turns familiar predators into complex subjects of discovery.

Fin cameras reveal shark behavior from inside their hidden world.

The Secret Lives of Sharks

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Great white sharks are one of the most feared predators on Earth, and yet we know very little about them. Science is now revealing the mysteries of this perfect predator through evolutionary biology.

See how evolutionary biology opens a rare window into the lives of great white sharks, one of Earth's most feared and least understood predators. This episode follows researchers using DNA analysis to build a family tree, revealing clues about shark mothers, siblings, mating, and nursery habitats. Sign up to watch a mystery of survival become a story of connection.

DNA evidence uncovers the hidden bonds shaping great white shark lives.

Great white sharks are one of the most feared predators on Earth, and yet we know very little about them. Science is now revealing the mysteries of this perfect predator.

Shark Family Tree

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Shark expert Jim Abernethy conducts stunning, cage-free dives with the ocean’s greatest predators to demonstrate they are not mindless, man-eating monsters.

Join shark expert Jim Abernethy as he dives without a cage at Tiger Beach, coming face to face with large predatory sharks. Through decades of experience, he reveals behavior most people never see, including their calmer, more responsive side. Watch to challenge what you think you know and understand why protecting sharks matters to ocean life.

Cage-free dives reveal the surprising trust between humans and tiger sharks.

The Shark Whisperer

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Follow the epic trials of young men willing to pass amazing initiatory ordeals to achieve manhood.

Discover how young men in Papua New Guinea, Mongolia, Ethiopia, Brazil, and Nepal face demanding rites of passage shaped by their communities and landscapes. Each story reveals the skills, beliefs, and risks behind the transition to manhood, from shark calling to bull leaping and cliffside honey hunting. Sign up to see how tradition, endurance, and identity collide in unforgettable detail.

Ancient rites test courage from shark seas to desert winds.

GROWING UP

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Circle the globe on this exhilarating 5-part epic that “connects the dots" between the GIANTS of the natural world, past and present.

Follow zoologist and conservationist Dan O'Neill across five globe-spanning episodes as he searches for giant animals living today. Using the latest scientific data, the series connects them to even larger extinct ancestors, revealing how they evolved, why those ancient giants died out, and what it will take to protect their modern counterparts.

Sharks

Decoding Megalodon

The Secret Lives of Sharks

Shark Family Tree

The Shark Whisperer

GROWING UP

Giants