Making Sense of Science on Instagram: "Tahlequah the killer whale made headlines in 2018 when scientists observed her swimming with her deceased calf on her back for 17 days in an act of profound grief. The grieving mother swam more than 1,000 miles before finally surrendering her calf to the ocean. Since then, the Center for Whale Research has been following Tahlequah—and they recently observed her swimming with a newborn calf, a female, which they named J61. J61 joins another one of Tahlequah’