Multimedia

See a boa species that scientists hadn't witnessed alive in more than 50 years.

Watch the birth of platelets in the lungs of mice, a finding that contributes to a new understanding of the respiratory organs' role in blood formation.

Genomicist Lauren Petersen wins a mountain bike race after she altered her own gut microbial communities.

Meet one child saved from brain damage by cooling therapy.

Mounting evidence suggests that intermittent fasting causes significant changes to various organs and tissue types.

A look at how gluten affects patients with celiac disease

Both macroplastic items, such as bags, bottles, and other packaging, and products containing micro- and nanoplastic particles—from cosmetics to paints—contaminate the Earth’s ecosystems.

Lab studies suggest that plastic pollutants in the environment could have detrimental effects on animals’ physiology.

See how scientists designed food with amino acid compositions based on protein-coding regions in the genomes of mice and fruit flies.

See researchers' recipe for synthetic mesenchymal stem cells, which showed cardiac regenerative potential in mice.

May Profilee Ben Barres of Stanford University discusses how understanding the basic biology of myelination could help patients with multiple sclerosis and other diseases.

Watch Komodo dragons bring down a buffalo.