Photos
Photos
The following photographs can be downloaded as print-quality images (click to enlarge). They may be used free of charge only in connection with reporting on this media release and are not to be archived.
© Eawag.
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Nuptial
coloration in males of the cichlid species Pundamilia
nyererei (left) and Pundamilia
pundamilia is adapted to the red or blue
ambient light of their respective habitats and to the corresponding visual
sensitivity of the females. © Eawag