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We tested the hypothesis that the Algerian hedgehog (Atelerix algirus) consumes smaller eggs in preference to larger ones and that the colour of the eggs (brown or white spotted) does not influence the egg consumption rate. Eggs of three galliform species (the quail, Coturnix japonica; the red legged partridge, Alectoris rufa; the chicken, Gallus domesticus) were offered to 14 individual hedgehogs...
Bioluminescence most likely evolved under selection from the visually guided behaviours of co-occurring organisms, in particular that of predators. Many possible functions of light signals have been proposed and some are supported, but whatever their function may be, they make an easy target of the emitter unless it is defended. Therefore, we want to emphasise that in many cases bioluminescence can...
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