Fish rely on their noses to guide them to food, escape predators, and find mates. Now, scientists believe increasing levels of carbon dioxide in the ocean are harmful to fish’s ability to pick up ...

Just as humans rely on their sense of smell to detect suitable food and habitats, avoid danger, and find potential mates, so do fish — only instead of sniffing scent molecules floating through the air ...

Pollutants in the water may be endangering fish by lowering their ability to smell, according to University of Washington researchers. Many people associate water pollution with big fish die-offs, ...