Ecologists have long observed that when food becomes scarce, animal populations exploit a wider range of food sources. So scientists studying southern sea otters at different sites in California’s ...

Credit: flickr Sea otters must consume roughly 25% of their body weight daily to sustain their high metabolism and body heat in cold waters. Their diet includes sea urchins, crabs, and other marine ...

The sea otter diet consists of invertebrates such as sea urchins, crabs, mussels, and squid that can cause grease to accumulate in their fur. As the otters lick their pelts to remove the grease, they ...

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 ...