Animal colour vision is based on comparing signals from different photoreceptors. It is
generally assumed that processing different spectral types of photoreceptor mainly serves …

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 …

Simple roles for photoreception are likely to have preceded more demanding ones such as
vision. The driving force behind this evolution is the improvement and elaboration of animal …

The morphology and molecular mechanisms of animal photoreceptor cells and eyes reveal
a complex pattern of duplications and co-option of genetic modules, leading to a number of …

Photoreceptor Evolution: Ancient Siblings Serve Different Tasks: Current Biology Skip to Main
Content Advertisement Current Biology This journal offers authors two options (open access or …

The use of spectral information in natural light to inform behaviour is one of the oldest and
most fundamental abilities of visual systems. It long-predates animals' venture onto the land …

Every aspect of vision, from the opsin proteins to the eyes and the ways that they serve
animal behavior, is incredibly diverse. It is only with an evolutionary perspective that this …

For color vision, retinal circuits separate information about intensity and wavelength. In
vertebrates that use the full complement of four “ancestral” cone types, the nature and …

Vision endows an animal with the ability to detect almost instantaneously the environment
around it. A primary visual function must be the detection of objects against a background …

Although the common descent of all life has been widely accepted since Darwin's time, new
research occasionally provides us with arresting reminders of the unity of evolutionary …