This siphonophore—a collection of single cells that teamed up to form a larger creature—was spotted in shallower water near Mocha Island (a small island off the coast of Chile) while ...

The Glaucus atlanticus is a carnivore by nature, preying primarily on siphonophores like the Portuguese man o’ war. One notable animal it preys upon is the highly venomous Portuguese man o’ war. In ...