Tagged With animal defenses

When confronted by an enemy, Southeast Asian "exploding ants" do exactly what their name implies: they explode. Ignored for decades, researchers have completed a detailed survey of these enigmatic ants, discovering over a dozen species that fit into this group, including one that's completely new to science.

Prey animals are capable of defending themselves in an amazing variety of ways, but when it comes to mounting a sophisticated biological counter-attack, sea urchins have taken it to another level. When attacked by predatory fish, these humble echinoderms release a hostile cloud of tiny jaws that act independently of the urchin itself, attacking the fish and releasing the venom contained within them.