Giant Caribbean Sea Anemone (Condylactis gigantea)

As cnidarians, giant Caribbean sea anemones have stinging cells called nematocysts. The tip of each tentacle contains a neurotoxin that can injure (or even destroy) the nerve tissues of an attacker - however, the concentration is too low to harm a human. The stinging method is also used to catch prey by stunning small animals as the arms pull them in toward the anemone’s mouth.