Some animals can regrow lost body parts. Salamanders and frog tadpoles can rebuild entire limbs after amputation. Mammals cannot. For decades, biologists have tried to understand why. Now a team led ...

Low oxygen levels trigger the early phase of limb regeneration in mammals by stabilizing the protein HIF1A. This promotes rapid wound healing and primes the activation of genes required for ...

Cardiovascular diseases remain the leading cause of death worldwide, accounting for nearly 20 million deaths each year. Rapid ...

Researchers have discovered why amphibians regenerate limbs and mammals do not ...

In most people, carbon dioxide and hydrogen—not methane, Hall stresses—make up the bulk of farts. All that hydrogen comes from microbes breaking down beans, greens, and other gassy foods. “If you see ...