In an effort to better understand the function of physiological color change in anurans, we
measured color change responses of the green treefrog, Hyla cinerea, to background …

Highlights•Dragonflies have a remarkable number of opsin genes.•Opsin genes are
differentially expressed between stages and regions in dragonflies.•Multilayer structure is …

Flower colour is an important signal used by flowering plants to attract pollinators. Many
anthophilous insects have an innate colour preference that is displayed during their first …

In situations of aggressive mimicry, predators adapt their color to that of the substrate on
which they sit for hunting, a behavior that is presumed to hide them from prey as well as from …

Anoline lizards communicate with visual displays in which they open and close a colourful
throat fan called the dewlap. We used a visual fixation reflex as an assay to test the effects of …

Being the largest land mammals, elephants have very few natural enemies and are active
during both day and night. Compared with those of diurnal and nocturnal animals, the eyes …

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 …

The principal challenge faced by any color vision system is to contend with the inherent
ambiguity of stimulus information, which represents the interaction between multiple …

" The primary necessity which led to the development of the sense of colour was probably
the need of distinguishing objects much alike in form and size, but differing in important …

Tethered crickets (Gryllus campestris) walking on an air-suspended ball exhibit a
spontaneous response to the e-vector of polarized light presented from above. In this study …