Stress, the body's natural response to different types of challenges and daily problems, is an inherently harmless state ...

Brain circuits for vision develop without any kind of input from the retina in zebrafish. Animals possess specialized networks of neurons in the brain that receive signals about the outside world from ...

Using a virtual reality setup, the team fixed a larval zebrafish fish in place and showed it different visual patterns. The first 10 seconds show the fish at rest. When the fish sees a pattern ...

The ability of some animals to dynamically change color to match the brightness of their surroundings is one of nature's great survival tools, allowing flatfish to blend into sandy seabeds, frogs to ...

The decades-old anesthetic ketamine could be a game changer for treating severe depression, but there are still many questions about how the drug works, including exactly how it affects the brain's ...