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

Mother orca Tahlequah has been carrying her dead calf, a daughter, for at least 11 days, according to local news outlets. Tahlequah first made headlines in 2018 after taking a different dead calf on a 'tour of grief,

The same whale that made world headlines in 2018 for pushing her dead newborn calf around for 17 days, has now spent at least nine days doing the same with her calf that died around New Year's Eve.

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 calf was born Dec. 24. Observing researchers noted unusual unspecified behaviors by mother and calf that led them to worry for the young whale's health.

An endangered Pacific Northwest orca that carried her dead calf for over two weeks in 2018 is doing so once again following the death of her new calf.

Tahlequah, an orca whale who carried her dead calf for 17 days in 2018, is grieving another loss. On Jan. 3, researchers confirmed that Tahlequah lost another calf and is once again carrying her baby's body through the ocean,

Mother orca 'appeared to be trying to keep it (calf) from sinking' off Canada's Vancouver Island, says Center for Whale Research - Anadolu Ajansı

The calf was reported to have died around New Year’s Eve and the mother was seen pushing the remains, just as she had done in 2018 when she carried a calf’s body for 17 days. Researchers have said the behaviour is an apparent act of grief, and that J35 has now lost two of her four documented calves.

This week, mother orca Tahlequah may have surpassed her 2018 tour of grief, during which she carried her dead calf for 17 days and more than 1,000 miles.