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 grief over lost offspring,

Researchers at the center were notified that a new calf had been seen traveling for several days with J Pod in the Puget Sound area Dec. 20. After observing the baby orca, they were able to confirm that Tahlequah, who scientists call “J35,” was its mother. The calf, named “J61” by the Center for Whale Research, is a female.