Zebrafish (Danio rerio) is a small freshwater fish that is an extensively studied vertebrate model organism. It can be bred rapidly in large numbers, is amenable to genetics, and has a clear embryo, ...

The federal government will designate more than 10,000 acres in Arizona and New Mexico as prime habitat for the threatened Chiricahua leopard frog. More than a dozen streams and many livestock ...

Lionesses are known to mate up to 40 times per day during their reproductive stage. Discover why lions mate so often here!

With flashy colors, iridescent scales, and long fins that flow around them like underwater ball gowns, betta fish are some of the most eye-catching creatures you might see for sale at a pet store or ...