The guppy (Poecilia reticulata) shows remarkable variation of photoreceptor cells in the
retina, especially those sensitive to middle-to-long wavelengths of light …

Reproductive isolation that prevents interspecific hybridization between closely related
coexisting species maintains sympatric species diversity. One of the reproductive isolations …

Sensory systems are tuned by selection to maximize organismal fitness in particular
environments. This tuning has implications for intraspecies communication, the maintenance …

Sensory drive predicts coevolution of mate choice signals with the sensory systems
detecting those signals. Guppies are a classic model for sensory drive as mate preferences …

According to the sensory drive model, variation in visual properties can lead to diverse
female preferences, which in turn results in a range of male nuptial colors by way of sexual …

Light environments critically impact species that rely on vision to survive and reproduce.
Animal visual systems must accommodate changes in light that occur from minutes to years …

Teleosts show a great variety in visual opsin complement, due to both gene duplication and
gene loss. The repertoire ranges from one subfamily of visual opsins (scotopic vision) …

Differences in color vision can play a key role in an organism's ability to perceive and
interact with the environment across a broad range of taxa. Recently, species have been …

The important role of retrogenes in genome evolution and species differentiation is
becoming increasingly accepted. One synapomorphy among cyprinodontoid fish is a …

Differences in sensory tuning are reported to maintain species boundaries and may even
lead to speciation. Variation in the tuning of color vision is likely due to differences in the …