A very large proportion of the world's animal species are active in dim light, either under the
cover of night or in the depths of the sea. The worlds they see can be dim and extended, with …

With their highly sensitive visual systems, nocturnal insects have evolved a remarkable
capacity to discriminate colors, orient themselves using faint celestial cues, fly unimpeded …

Recent studies have shown that certain nocturnal insect and vertebrate species have true
color vision under nocturnal illumination. Thus, their vision is potentially affected by changes …

In many contexts, animals assess each other using signals that vary continuously across
individuals and, on average, reflect variation in the quality of the signaller,. It is often …

Although research on plant volatiles and pollination ecology has grown explosively over the
past 15 years, there remains little dialogue between these fields. Here I examine the …

Nectar-feeding animals can use vision and olfaction to find rewarding flowers and different
species may give different weight to the two sensory modalities. We have studied how a …

Nervous tissue is one of the most metabolically expensive animal tissues, thus evolutionary
investments that result in enlarged brain regions should also result in improved behavioural …

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 …

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 …

Successfully locating a host plant is crucial for an insect herbivore to feed and/or oviposit.
However, locating a host within a complex environment that may contain an array of different …