There are over 25,000 identified species of fish on the earth, but there may be over 15,000 fish species that have not yet been identified.  

Steelhead and rainbow trout are the same species, but rainbow trout are freshwater fish only, while steelhead are anadromous.

October 6, 2011 | Categories: From the Gremlin

Steelhead and rainbow trout are the same species, but rainbow trout are freshwater fish only, while steelhead are anadromous.