Biology

A large new study of ovenbird lineages questions the extent to which competing species push each other to evolve.

Scientists have finally resolved the structure of the molecule that responds to chili peppers, high temperatures and spider toxins.

Scientists have discovered building blocks similar to those in modern RNA that can effortlessly assemble when mixed in water and heated.

An MIT physicist has proposed the provocative idea that life exists because the law of increasing entropy drives matter to acquire lifelike physical properties.

Some organisms respond to stress by driving up their mutation rate. Are they evolving specific mechanisms to enhance evolution in times of crisis?

Mysterious episodes of genetic duplication in our great ape ancestors may have paved the way for human evolution.

Striking evidence that plants warn each other of environmental dangers is reviving a once ridiculed field.

A rare brain stimulation study suggests that a brain circuit known as the “salience network” contributes to differences in our ability to overcome challenges and cope with stress.

Analyzing individual cancer cells could reveal the answer to some of the disease’s most enduring mysteries.