EnvironmentReturn of warm water 'blob' in the Pacific threatens marine life The reappearance of a vast blob of abnormally warm water in the Pacific, around seven times the size of Alaska, has raised the prospect of impacts on marine ecosystems and weather systems News
LifeSea creature uses stem cells to regrow entire body from a tiny piece Sea squirts use stem cells to regenerate their bodies from nothing but fragments of blood vessel, a finding that could help uncover the evolution of regeneration News