Rätsel der Evolution
Chromosomenanalysen offenbaren früheste Tiere
(Foto: © a, b, e, f: Joseph F. Ryan; c: R. Griswold, National Oceanic and Atmospheric Administration; d: Marsh Youngbluth, National Oceanic and Atmospheric Administration)
Kammquallen — (a) Beroe ovata, (b) Euplokamis sp., (c) Nepheloctena sp., (d) Bathocyroe fosteri, (e) Mnemiopsis leidyi, and (f) Ocyropsis sp.