We've heard that there's been some success with fish ladders and elevators in places such as the Columbia River.
Marine mammals don't sleep for a solid 8 hours a night, the way we do.
Did you know that low concentrations of drug residue survive sewage plants and end up in water downstream from wastewater facilities?
Fear smells like sugar. At least that's the case for zebra fish.
Females can activate their testes and deactivate their ovaries.
Do cats' movements when they play with toys reflect how they would hunt in the wild?
Find out which fish will survive best in your little fishbowl!
Fish have been eating plastic in the Great Pacific Garbage Patch. This has scientists concerned about long term effects on the environment.