Birds have evolved a mobile lifestyle in which vision is of major importance when controlling
movements, avoiding predators, finding food and selecting mates. Birds have extraordinary …

Vision has been investigated in many species of birds, but few studies have considered the
visual systems of large birds and the particular implications of large eyes and long-life spans …

Although many salticid spiders have been shown to have corneas that transmit ultraviolet
(UV) light, whether the corneas of non-salticid spiders transmit UV has not been previously …

Among birds, single cone sensitivities responsible for color vision appear surprisingly
conserved even though chromatic signals vary greatly. Thus it is widely held that avian …

The males of many animal species are bigger than the females and have often evolved
particular visual attributes, such as the conspicuous feather colourations of birds, the …