Researchers genetically engineered E. coli to produce colorful and fluorescent proteins originally from Cnidaria.

The genomes of jellyfish are compared with those of other Cnidarian species that don’t have a free-swimming stage.

A novel system lets researchers examine the neuromuscular features of a hydra.

A junk mail filter can learn to pick out six behaviors of hydras by analyzing hours of video footage.

A study of a simple marine animal suggests that the common ancestor of cnidarians and bilaterians may have had three germ layers instead of two.