You may have heard about the "immortal jellyfish," which was discovered by chance in the 1980s by two young scientists, Christian Sommer and Giorgio Bavestrello. They found that when adult ...

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 ...