Siphonophores - The longest animals on the planet Cousins of corals, siphonophores are colonies of specialized individuals called zoids. Some catch and digest their prey, others swim, or lay eggs or sperm.
Krill (Photo : Fabien Lombard)
Diatom genus Chaetoceros(Photo : Sophie Marro)
Ocean color satellites travel around the Earth at an altitude of about 700 to 800 km.