Why are Orcas Known as the “Wolves of the Sea”?

Season 39 Episode 6

About the Episode

Orcas have a special way of hunting herring, through a quick turn and their powerful tails sending shockwaves through the water to stun the fish. Large shoals of herring gather in the winter months, and it’s not just orcas that take advantage of the feast.

Aired: | Expires: | Runtime: 2m 45s

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Extras

Hummingbird Rescue: Baby Twins

Terry Masear helps rescue baby hummingbird twins whose mother died.

2:18
A Hummingbird Love Story

Injured hummingbirds Mikhail and Alexa happily share a cage.

1:43
How This Sloth Poop-Sniffing Dog is Saving the Species

Meet the world’s first sloth detective dog, Keysha.

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Life-Saving Bridges For Sloths

Climb into the jungle canopy with Tamara Ávila Atagua as she builds life-saving bridges for sloths.

1:43
Preview of Hummingbirds of Hollywood

Follow a woman’s transformative journey as she nurtures wounded hummingbirds.

0:30
Rare Footage of Sloth Drinking Water

Brand new to science: a sloth drinking water—captured cinematically for the first time.

0:47
Saving The Slowest Mammal on Earth | In Her Nature

A sloth scientist, her tree-climbing BFF, and their dog work to save Costa Rica’s sloth populations.

37:46
Lion Pride Hunts Buffalo

A buffalo hunt is a family affair.

3:00
Chaos at the Waterhole

Extreme drought drives animals to behave abnormally, as crocodiles and hippos crowd a waterhole.

3:16
Filming Katavi's Unseen and Remote Wilds

Wildlife filmmaker Owen Prümm ventures into Katavi, a remote region in southwestern Tanzania.

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