fish

Second ‘Cichlid’ fish species—native to Mexico—now threatening waters of southern United States, invading waterways in Louisiana A Case Western Reserve University scientist has played the lead role in identifying an invasive species related to one already threatening other fish in the waters of the...

Humans aren’t the only species that resort to a little subterfuge While a dominant male fish from northern Mexico mates with a female, a small fella bides his time in the offing. Suddenly, the little guy darts in ahead of Mr. Big and plants his seeds on freshly laid eggs. The behavior, which biolog...