The colonies of Eciton burchelli, an army ant, range in size from 300,000 to 700,000. Swarms of E. burchelli can reach 15 yards wide. The swarm raid allows the ants to capture a wide variety of prey by swarming around the prey and closing in on all sides, so that they cannot escape. This image is from Move or Die.
Meerkat sentries stand guard over their home, prepared to take on any less-than-friendly neighbors. Sometimes they may run away, but on some occasions they will fight brutal battles. This image is from World's Deadliest Lion.
Geologist Eric Drummond and Host Sam Sheridan are analyzing an area on the coast that looks like it was enhanced by human activity, and could have housed Atlantis' fleet. This image is from Atlas of Cursed Places.