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Transposable elements were long dismissed as useless, but they are emerging as major players in evolution. Their interactions with the genome and the environment affect how genes are translated into physical traits.
The social activities and organization of bacteria are crucial to their ecological success. But it is only in recent years that we have begun to study these secret societies.
How did dinosaurs stand and move? Computer simulation and other methods have told us much about how dinosaurs did and did not move, but they have not yet reached their full potential.
