Killer whales, or orcas, have long been recognized as some of the most intelligent creatures in the ocean. Known for their ...

Tahlequah previously carried another dead newborn for 17 days in 2018. Here's what she's taught us about how orcas deal with death.

THE “world’s loneliest orca” who has been trapped in a tiny pool for 32 years is experiencing the “worst form of torture”, experts claim. A devastating video shows Kshamenk barely able ...

Tahlequah and her babies are southern resident killer whales, a species that is classified as critically endangered in large part due to environmental concerns. Specifically, the NOAA attributes ...

By analyzing hormones in southern resident killer whales’ feces, Wasser has helped show that members of Tahlequah’s species reproduce at some of the lowest rates of any marine mammal.

Killer whales typically reproduce every five years ... The loss of a female calf like J61 is particularly harmful to the species’ future because it diminishes the population’s ability for ...

In 2018, an orca in the Pacific Ocean’s Southern Resident population named Tahlequah refused to let go of her dead calf, ...

Mother orca Tahlequah is continuing to carry her burden of grief: a dead calf that she now has been refusing to let go of for ...

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., ...