Tahlequah, a female endangered Pacific Northwest orca, is once again carrying her deceased calf, highlighting her grief. This follows a similar incident in 2018 when she carried her dead calf for 17 days. The mortality rate among orca calves is high, with only about 20% surviving to their first birthday. The southern resident orca population is critically low, with only 73 remaining, facing threats from prey scarcity and pollution. Teljes cikk (Euronews.com)