A novel suggestion that complexity increases over time, not just in living organisms but in the nonliving world, promises to rewrite notions of time and evolution.

Now 164 years later, nine scientists and philosophers on Monday proposed a new law of nature that includes the biological evolution described by Darwin as a vibrant example of a much broader ...

Researchers have found that wild orangutans vocalize with a layered complexity previously thought to be unique to human communication, suggesting a much older evolutionary origin.

Papadimitriou’s approach, which grouped that process with other search problems connected to the empty-pigeonhole principle, had a self-referential flavor characteristic of much recent work in ...

Scientists Suggest a New Layer to Crows’ Cognitive Complexity The birds may be able to grasp a pattern-forming concept once thought to be unique to humans ...