Humpback whales, working in teams, circle herring with disorienting curtains of bubbles off Alaska's coast, then shoot up from below with their mouths open. This innovation developed among unrelated groups of humpbacks but is now a widely adopted practice.
Brian Skerry/National Geographic
hide caption
Belugas play, a sperm whale nurses, and orcas teach their pups to hunt in a series of photographs from National Geographic photographer and explorer Brian Skerry.
A state judge in Tennessee ruled the drug company Endo Pharmaceuticals is liable for harm caused by their opioid drug, Opana ER.
Rich Pedroncelli/AP
hide caption
To cut carbon emissions, President Biden announced an initiative to further cut the cost of solar installations, like this one being tested at the National Renewable Energy Laboratory in Colorado.
Dennis Schroeder/NREL
hide caption
Humpback whales, working in teams, circle herring with disorienting curtains of bubbles off Alaska's coast, then shoot up from below with their mouths open. This innovation developed among unrelated groups of humpbacks but is now a widely adopted practice.
Brian Skerry/National Geographic
hide caption