Many animals use vision to detect, discriminate, or recognize important objects such as prey,
predators, homes, or mates. These objects may differ in color and brightness—having …

The first mobile camera phone was sold only 20 years ago, when taking pictures with one's
phone was an oddity, and sharing pictures online was unheard of. Today, the smartphone is …

The fully updated eighth edition of Cognitive Psychology: A Student's Handbook provides
comprehensive yet accessible coverage of all the key areas in the field ranging from visual …

The nighttime environment is being altered rapidly over large areas worldwide through
introduction of artificial lighting, from streetlights and other sources. This is predicted to …

When vertebrates first conquered the land, they encountered a visual world that was
radically distinct from that of their aquatic ancestors. Fish exploit the strong wavelength …

The ability to see colour at night is known only from a handful of animals. First discovered in
the elephant hawk moth Deilephila elpenor, nocturnal colour vision is now known from two …

The presence of two spectrally different kinds of rod photoreceptors in amphibians has been
hypothesized to enable purely rod-based colour vision at very low light levels. The …

Highlights•Bird colour vision depends on opsins, retinal mosaic, ocular media and oil
droplets.•Birds use spectral cues for phototaxis, magnetoreception and circadian …

Color in nature presents a striking dimension of variation, though understanding its function
and evolution largely depends on our ability to capture the perspective of relevant viewers …

Biofluorescence is the absorption of electromagnetic radiation (light) at one wavelength
followed by its reemission at a lower energy and longer wavelength by a living organism …