Chum salmon swimming their way back to their breeding place. Photo by: Thomas Kline, Salmonography. It’s hard to believe that trees...

Sand Tiger Shark, the most popular aquarium shark. The sand tiger shark ( Carcharias taurus ), the most popular shark in the aquariu...

More like eel than fish, lamprey lack of fins. European river lamprey ( Lampetra fluviatilis ), also known as river lamprey or lampe...