One Million Heads, One Beautiful Mind
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Concluding the two-part documentary looking at awe-inspiring animal swarms with an examination of collective intelligence as a means of escaping predators. The latest camera techniques show how millions of free-tailed bats form a living tornado and shoals of herring shape-shift across the ocean floor. Plus, how some shore birds synchronise their migration with the spawning season of the horseshoe crab. David Tennant narratesWatch It
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