Although UV vision was first demonstrated in birds in the early 1970s, its function is still
unknown. Here we review the evidence for UV vision in birds, discuss the special properties …

Many long-standing evolutionary hypotheses make predictions about trends in color
patterns. Examples of these include crypsis, mimicry and warning coloration, fruit coloration …

Colour gradients along the sky caused by atmospheric scattering were measured on sunny
days. It is concluded that whereas the shape of the spectral intensity distribution in the short …

A survey of recent results out of spectrophotometric, microspectrophotometric, and
behavioral tests concerning the UV vision of the passeriform bird Leiothrix lutea is …

Stomatopods (mantis shrimps) possess one of the most complex visual systems in the
animal kingdom. Each eye is capable of monocular distance judgement, colour vision …

The results of a microspectrophotometric and a behavioural test present evidence that the
passeriform bird Leiothrix lutea (Timaliidae) possesses a genuine UV cone type and is …