Wildlife biologist Brad Hanson was worried about the orca calf the first time he saw her. The calf, born into a pod of endangered southern resident killer whales that live off the coast of B.C., ...

Killer whales typically reproduce every five years ... harmful to the species’ future because it diminishes the population’s ability for reproduction. “Assuming (orcas) live a full lifespan, you’re ...

Tahlequah, the grieving mother orca, once again carries the weight of loss, embodying the emotional depth and resilience of ...

Other whale news: Family of orca Tokitae revisits site of her capture ... Other negative impacts on the reproduction process and health of newborns, according to Garrett, are bioaccumulation ...

A killer whale that is part of a population struggling ... During a press briefing this week detailing J pod’s latest adventure in reproduction, scientists in the U.S. said they do not expect ...

Other whale news: Family of orca Tokitae revisits site of her capture ... Other negative impacts on the reproduction process and health of newborns, according to Garrett, are bioaccumulation ...

Cetaceans—marine mammals that include dolphins, porpoises, and whales—are crucial to coastal ecology. Their presence fosters ...

The evolution of sexual parasitism enabled a successful reproduction strategy that ... widespread attention to the quirky behaviors of killer whales, but experts caution that it’s unlikely ...

A Pygmy killer whale — rarely seen in the shallow waters that surround the Florida Keys — was found injured, sick and ...