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.

Tahlequah, an orca well-known for having carried her dead calf for over two weeks back in 2018, has been struck by a heartbreaking event once again. After it was recently announced that the orca had given birth,

In 2018, researchers observed J35 pushing her dead calf along for 17 days, propping it up for more than 1,000 miles.