Biologists have characterized new, unknown photoreceptors from the bioluminescent flashlight fish Anomalops katoptron. The photoreceptors known as opsins allow the fish to detect light with a specific ...

Scientists have discovered ultra-black fish that absorb almost all light that hits them, allowing them to effectively hide in the deepest, darkest parts of the ocean. It appears to be a more efficient ...

Exposing fish to artificial light at night, not only made fish more active during the night, but also made them emerge quicker from hiding places during the day, which could increase their exposure to ...

New research suggests that exposure to artificial light at night causes guppies to engage in riskier behavior during the day, and that could put them in danger. An animal’s environment is not just ...

Bobbing along on the research vessel Western Flyer just outside California’s Monterey Bay, marine biologist Karen Osborn and her colleagues were hauling deep-sea fish to the surface for cataloging and ...

The Arctic polar night remains one of the last undisturbed dark environments on the planet. But as the climate changes and human activities increase in the Arctic, natural light sources — such as the ...

Artificial light at night also makes guppies more courageous during the day, according to a new behavioral study. Artificial light at night also makes guppies more courageous during the day, according ...