This bird never sees winter. It flies 96,000 kilometers every year. #humanrevealed

Ajouté : 2026-05-05

[00:00:00]This bird never sees winter.

[00:00:03]When winter comes to the Arctic, it flies to Antarctica. When winter comes to Antarctica, it flies [music] back.

[00:00:10]Twice around the Earth.

[00:00:13]Every year.

[00:00:14]For 30 years. What is it?

[00:00:17]An Arctic Tern.

[00:00:19]A bird most people have never heard of.

[00:00:22]And the greatest traveler on Earth. It weighs 4 oz. Up to 96,000 km. Every year. Twice around the Earth. It sleeps while flying.

[00:00:34]Half its brain [music] rests.

[00:00:36]The other half stays awake. It eats while flying.

[00:00:41]Diving into the water without landing.

[00:00:44]It stops in midair.

[00:00:46]Wings beating against the wind.

[00:00:49]Hovering. Scanning the water below.

[00:00:52]Why does it fly so far?

[00:00:54]For the same reason anything moves.

[00:00:57]Food.

[00:00:58]Survival.

[00:01:00]In the Arctic winter, the sun never rises. 24 hours of darkness.

[00:01:06]No light. No fish to see. No way to hunt. So, it flies to where summer never ends.

[00:01:13]Arctic summer.

[00:01:15]Antarctic summer.

[00:01:17]6 months of endless sun. [music] Every year.

[00:01:22]The chicks hatch in the Arctic.

[00:01:24]3 months old, they migrate south with their parents.

[00:01:28]When they reach Antarctica, the parents leave them.

[00:01:32]The chicks stay. [music] Alone.

[00:01:35]For 1 year.

[00:01:36]Or 2.

[00:01:38]Then, they fly home.

[00:01:40]22,000 km. No map. No guide.

[00:01:45]Just Earth's magnetic field and the stars.

[00:01:49]More than 60 trips around the planet.

[00:01:52]>> [music] >> In one lifetime.

[00:01:54]And it never sees winter.

[00:01:57]Nature hides. We reveal.