The first in-depth look at the genome of a jellyfish -- the moon jelly Aurelia aurita -- shows that early jellyfish recycled existing genes to gain the ability to morph from polyp to medusa. Jellyfish ...

Jellyfish clone themselves by morphing into a stack of squirming jellyfish pancakes. When grown-up jellyfish love each other very much, they make huge numbers of teeny-tiny potato-shaped larvae. Those ...

Freshwater jellyfish, chiefly represented by the hydrozoan Craspedacusta sowerbii, exhibit a complex metagenetic life cycle comprising benthic polyps and pelagic medusae. Native to East Asian river ...

Translucent jellyfish, colorful corals and waving sea anemones have very different bodies but all fall on the same big branch in the animal family tree. Jellyfish actually start out anchored to the ...

Jellyfish undergo an amazing metamorphosis, from tiny polyps growing on the seafloor to swimming medusae with stinging tentacles. This shape-shifting has served them well, shepherding jellyfish ...

Jellyfish undergo an amazing metamorphosis, from tiny polyps growing on the seafloor to swimming medusae with stinging tentacles. This shape-shifting has served them well, shepherding jellyfish ...