Early pregnancy detection can potentially help researchers protect pregnant killer whales from lack of nutrition and ...

Orcas, like humans, get baby bumps in the early months of pregnancy and grow larger as the pregnancy advances. Researchers say they can now spot those underwater baby bumps from the air and keep ...

A local Indigenous tribe had watched over the orca calf after her pregnant mother died on a rocky beach in late March.

A young orca is refusing to return to the open ocean after its pregnant mother became stranded and died in a lagoon off Vancouver Island in Canada, rescuers say. The mother and calf entered the ...

In 1969, a four-year-old baby orca was separated from her family off ... in captivity — slowly starved to death. Corky became pregnant seven times while in captivity, but none of her offspring ...