The horn shark seemed to escape, but the moment reveals surprising overlap between otter and shark habitats.

1. Otter ecology and its background -- 2. Pen pictures. Thirteen otters of the world : some natural history -- Europe -- Common or Eurasian otter, Lutra lutra -- North America -- River otter, or North ...

On a blue-sky afternoon, kayakers paddle past dozens of sea lions lolling in the sun and make a beeline toward the sea otters lounging on beds of eel grass at Elkhorn Slough on California’s central ...

After a decade of steady recovery, the southern sea otter–a federally listed threatened species–is in decline for the second year in a row, according to the latest population survey by U.S. Geological ...