Highlights•Insects perceive separately chromatic and achromatic aspects of colour
patterns.•Flowers present colour patterns as individual or shared displays.•Visual …

Opsins, combined with a chromophore, are the primary light-sensing molecules in animals
and are crucial for color vision. Throughout animal evolution, duplications and losses of …

Abstract Hawkmoths (Lepidoptera, Sphingidae) comprise around 1500 species, most of
which forage on nectar from flowers in their adult stage, usually while hovering in front of the …

Colour discrimination is based on opponent photoreceptor interactions, and limited by
receptor noise. In dim light, photon shot noise impairs colour vision, and in vertebrates, the …

The dual retina of humans and most vertebrates consists of multiple types of cone for colour
vision in bright light and one single type of rod, leaving these animals colour-blind at night …

Summary 1 In social insects, reproductive success and survival of the colony critically
depend on the colony's ability to efficiently allocate workers to the various tasks which need …

We discovered nocturnal colour vision in the Asian giant honeybee Apis dorsata—a
facultatively nocturnal species—at mesopic light intensities, down to half-moon light levels …

Since the first volume of The Biology of Sea Turtles was published in 1997, the field has
grown and matured in ways few of the authors would have predicted—particularly in the …

Night, dawn, and dusk have abiotic features that differ from the day. Illumination, wind
speeds, turbulence, and temperatures are lower while humidity may be higher at night …

The Indian meal moth (IMM), Plodia interpunctella (Hübner)(Lepidoptera: Pyralidae),
engages in long‐distance or foraging flights in the twilight hours of the scotophase when …