Water flea morphs,SEM

Numéro d’image : 11907018
Water flea morphs,SEM
Water flea morphs. Coloured scanning electron micrograph (SEM) of differently-shaped forms of the water flea Daphnia longicephala. Research at the Ludwig-Maximilians University in Germany has shown phenotypic plasticity in several water fleas; they can change their body shapes in response to chemicals (kairomones) given off by predators. The form on the left is a standard shape,whilst that on the right has developed a large crest on its head (green),which may make it more difficult for invertebrates to catch or eat it. This flea's predators include the backswimmer (family Notonectidae). Magnification unknown
Licence : Droits gérés
Crédit: Science Photo Library / Laforsch, Christian
Taille de l’image : 3156 px × 2362 px
Model Release : Non requis
Property Release : Non requis
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