This story appears in the January 2010 issue of National Geographic magazine. When Andrew Stanton set out to make an animated children's movie set in the ocean and faithful to "the real rules of ...

A breeding pair of clownfish in the wild sheltered by a sea anemone. In this mutualistic relationship, the clownfish provides food to the sea anemone and the anemone provides protection for the ...

Another advantage of keeping clownfish is that they have relaxed and mellow personalities. This means that owners can pair them with some other species of fish. Typically, they live harmoniously ...