The oldest fossilised remains of complex animals appear suddenly in the fossil record, and as if from nowhere, in rocks that ...

The results revealed a clear sequence. Enzymes predating cannabis showed no ability to process CBGA. The first enzyme unique ...

It may have fewer than many of the other sciences, but biology does have two dozen or so “rules”—broad generalizations about ...

Environmental change doesn’t affect evolution in a single, predictable way. In large-scale computer simulations, scientists ...

An inexplicably hot, fast-growing cluster of galaxies in the early universe has scientists questioning theories of galactic evolution. Astronomers have spotted an unexpectedly hot galaxy cluster in ...

Ancient bones discovered in a cave in Casablanca, Morocco, could fill in some of the blanks about human evolution.

Some ants thrive by choosing numbers over strength. Instead of heavily protecting each worker, they invest fewer resources in individual armor and produce far more ants. Larger colonies then ...

Evolution is slow, but with the right experimental set-up—and enough time to spare—you can watch nature do its methodical work.

Synaptic plasticity allows brains to learn, adapt, and rewire. It’s foundational to memory, problem-solving, and complex ...

If we look across the whole of the mammal branch of the tree of life, we find there are many groups of mammals that have evolved testicles of all different sizes. In almost all these separate cases, ...

One hundred years ago, a small town in eastern Tennessee captured the attention of the entire country. A biology teacher in Dayton was accused of teaching human evolution to his students — which was ...