In this photo provided by NOAA Fisheries, the orca known as J35 (Tahlequah) carries the carcass of her dead calf in the waters of Puget Sound off West Seattle, Wash., on Wednesday, Jan. 1, 2025.

Orca calves in general face a harsh environment. According to the Center for Whale Research, only about 50% of calves survive their first year of life.

Tahlequah, the Southern Resident orca who carried her dead calf for 1,000 miles over 17 days in 2018, is mourning the loss of another newborn, raising concerns about her health.

Using sightings over four decades, researchers have pinpointed three main orca habitats off Australia, with key differences between each area's inhabitants.

Environment Only about half of Southern Resident orca calves survive. Here's why The Southern Resident killer whale population is near the lowest it has been in 30 years.

Other southern resident orcas have been observed carrying dead calves, Weiss said, “but certainly not for as long as J35 carried her calf in 2018.” There was some good news for the J pod ...

An endangered Pacific Northwest orca that made global headlines in 2018 for carrying her dead calf for over two weeks is doing so once again following the death of her new calf, in another sign of ...

In this photo provided by NOAA Fisheries, the orca known as J35 (Tahlequah) carries the carcass of her dead calf in the waters of Puget Sound off West Seattle, Wash., on Wednesday, Jan. 1, 2025.

In this photo provided by NOAA Fisheries, the orca known as J35 (Tahlequah) carries the carcass of her dead calf in the waters of Puget Sound off West Seattle, Wash., on Wednesday, Jan. 1, 2025.

In this photo provided by NOAA Fisheries, the orca known as J35 (Tahlequah) carries the carcass of her dead calf in the waters of Puget Sound off West Seattle, Wash., on Wednesday, Jan. 1, 2025.