making it look like a jellyfish, and that soldiers were unable to see it using night-vision goggles unless they had them in ...

as box jellyfish do. Stage four is where the evolution of eyes—and their owners—really takes off. With the addition of lenses for focusing light, vision becomes sharp and detailed.

Jellyfish have survived for over 500 million years, making them more ancient than the dinosaurs. Today these otherworldly creatures can be found around the world, from coastal shallows to the ocean ...

Jellyfish are known for drifting to and fro at the whim of ocean currents—but not all species are so passive. The millions of golden jellyfish that pack Palau’s Jellyfish Lake spend much of ...