Could this tiny creature, named after a mythical multiheaded monster, hold the secret to eternal youth? Related to jellyfish and anemones, the hydra has an almost otherworldly ability to heal itself and stave off aging.
They might look like harmless grasshoppers, but locusts have an appetite for destruction.
A kissing bug gorges on your blood, plus it may carry a potentially deadly parasite.
Skeleton shrimp anatomy can be confusing, with their funky assortment of body parts.
