Vantage with Palki Sharma A grieving mother orca is once again carrying her dead calf, echoing a heartbreaking event from 2018. Across the world, killer whales are facing a crisis. From near-extinct ...

The southern resident orca population marked the turn of the year with both heartbreak and hope: the death of a newborn calf ...

Tahlequah, the Southern Resident orca who carried her dead calf for 17 days in 2018, is mourning the loss of another newborn, ...

Courtship and procreative behavior in many species of elasmobranchs—cartilaginous fish including rays, sawfish, sharks, and skates—may include following and biting. However, there has been little ...

Egypt's Wadi Al-Hitan — or "Valley of the Whales" — is famous for its abundance of fossils from the Eocene epoch.

The spiraled tusk juts from the head and can grow as long at 10 feet. Unlike some whale species that migrate, narwhals spend their lives in the Arctic waters of Canada, Greenland, Norway and Russia.