Mysterious Gathering of Sharks

Season 42 Episode 17

About the Episode

Basking sharks are the second biggest fish on the planet, up to 40 feet long and four tons in weight. While these massive sharks are typically solitary, they have recently been found gathering together. And no one knows why.

Aired: | Expires: | Runtime: 2m 53s

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Extras

Capturing San Diego: America's Wildest City

Go behind the scenes with filmmakers as they capture San Diego's incredible biodiversity.

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Desert Lion Cubs Hunt at Night

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Preview of Attenborough’s Life Journey

An intimate portrait of Sir David Attenborough’s life and career in natural history.

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Extraordinary Lion Behavior Caught on Camera

Orphan cubs find their way to the beach, where they discover a new kind of prey: seals.

3:16
Young Lioness Learns to Hunt Giraffes

As a young lioness reconnects with her aunt, she is taught how to hunt giraffes.

1:28
Filming Transylvania's Elusive Wildlife

Irish director John Murray sets out to reveal the natural wonders of Transylvania.

8:25
Baby Squirrels vs. Deadly Crows

The growing squirrel colony draws the attention of the crows.

3:06
Why Does San Diego's Ocean Glow Blue?

As the sun sets in the West, other lights come awake.

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Roadrunner Hunts Hungry Hummingbirds

Like the cartoon, the real roadrunner is clever -- and also a hunter.

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Preview of Lions of the Skeleton Coast

Follow three orphaned desert lion cubs as they navigate the brutal Skeleton Coast of Namibia.

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