With the salt flats all to themselves, these flamingos have the privacy to dance -- and in the process, choose their mates.

While gossip columnists may have full reign over the sex lives of Hollywood stars, scientists have invaded the habitats of the most infamous cheating animals.

After watching the brown bears on the coast of Alaska play the courtship game for over a month, Chris begins to think that people have it easy.

Researchers have discovered that all kinds of animals -- from sea slugs and caterpillars to songbirds and people -- undergo constant and remarkable physical changes during their lives.

Many animals have a special ability to transform themselves, for the sake of survival, reproduction, or both.

Scientists know that the amorous architects of the bird world build three basic kinds of bowers: "maypoles," "mats," and "avenues." But only now are they beginning to discover the reasons behind the existence of these different forms.