In a whorling clip narrated by David Tennant from the PBS/BBC series Wild Way of the Vikings, a herd of magnificent reindeer create a giant swirling cyclone with their bodies when an arrow flies overhead. This amazing coordinated maneuver is used to confuse and scare off predators together.
See how a herd of reindeer move together like a swirling cyclone as a form of defense.
Filmmaker Andrei Golovnev also captured incredible footage of a reindeer cyclone on the Kola Peninsula in Russia that’s located in the Arctic Circle.
via Science Girl