Siphonophorae

The star of the latest CreatureCast, created by evolutionary biologist Casey Dunn and his students at Brown University, is the psychedelic siphonophore. Casey writes, "It is difficult to explain how beautiful these animals are, so we put together some clips from our friend Steve Haddock at the Monterey Bay Aquarium Research Institute with a voiceover by Phil Pugh, who has described more species of siphonophores than any biologist in history."

CreatureCast: Diving for Jellies