HONOLULU -- The U.S. federal government on Friday will significantly expand the critical habitat for endangered Hawaiian monk seals to include beaches and waters of the main Hawaiian Islands, ...

Seals have a reputation for being the laid-back loungers of the animal kingdom, but there’s a lot more going on beneath that sleek surface. Seals, with dive times that rival submarines and milk fat ...

The endangered Hawaiian monk seal faces numerous threats — from entanglement in fishing lines to loss of habitat, shark predators, human disturbances, and diseases.

No one has seen a Caribbean monk seal for six decades, and none have been sighted in Florida in nearly a century. Now archaeologists say they have found a prehistoric tooth from the extinct animal, ...