A reconstruction of the evolutionary origins of SARS-COV-2, the virus that causes COVID-19, shows its lineage could hold other nasty viruses.

Why are frogs green? Their color comes from a clever biochemical workaround that combines an odd protein choice and a potential poison in the blood.

There may be a connection between genes involved in the opioid system and feelings of insecurity in romantic relationships, researchers find.

Both monkeys and humans have a way of thinking that involves recursion, a process of arranging words, phrases, or symbols to convey complex ideas.

Sequencing the gardenia genome shows how plants evolved to re-use tricks from their genetic toolbox to create new chemicals.

"This tells us that the basic organic chemistry needed for life is present in the raw gas prior to the formation of stars and planets."

Fossil footprints in what is now South Korea are evidence that some species of ancient crocodiles walked on two feet.

Darwin observed that some plants produce less pollen (and some animals less sperm). New research clarifies how that can be an advantage.

A study with chickens from Tibet shows that organisms have a kind of "memory" of their ancestral homes that makes adaptation to environmental change easier.

The fossil researchers have dubbed the "world's oldest bug" is older than any fossil of an insect, arachnid, or related creepy-crawly.