Les Diatomées - Bacillaria Colonie de diatomées du genre Bacillaria dont les individus peuvent glisser les uns par rapport aux autres.
Rosette used to collect seawater samples during a scientific cruise in the South Pacific Ocean. Duringthe austral summer,the amount of chlorophyllais so low thatthe water becomesdeepblue,almostpurple. (Photo : Joséphine Ras)
Foraminifera Orbulina universa and mollusk larva (Photo : Fabien Lombard)
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.
Diatoms - Life in glass houses Champions of photosynthesis, these unicellular organisms appeared at the time of dinosaurs.They produce a quarter of the oxygen we breathe.
