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Like dogs and horses, goats can discern happy from angry facial expressions. But whether these animals possess empathy remains unclear.

Adipocytes lose their lipids and reprogram themselves into stem cells during lactation, then turn back into fat cells after pups wean.

Studying how neural crest cells journey through the embryo, this Caltech developmental biologist has revealed how they form major cell types, including peripheral neurons, bone, and smooth muscle.

Biology happens on many levels, from ecosystems to electron transport chains. These tools may help spur discoveries at all of life's scales.

From making ribosomes to protecting the integrity of the genome, these membraneless compartments play important roles in the cell. Their behavior is rooted in basic physics.

United Nations members agree to some restrictions on the technology, but not a total suspension of its use.

Investigators have the victims’ samples in hand, but face a range of obstacles before they can finally ID them.

A toothless whale fossil without signs of baleen could help explain how the whale filtration system evolved.

Without access to their mothers’ milk, Toxeus magnus offspring die within the first 10 days of life.

Despite a premature and ethically sketchy claim of genome editing in twin girls, an outright prohibition could blunt promising, responsible progress.

He Jiankui, who reportedly edited the genomes of two babies already, broke the news at a conference in Hong Kong.

Since their discovery in 2006, induced pluripotent stem cells have been poised to reprogram regenerative medicine. Twelve years on, here’s how far they’ve come.