Killer whales: Why more than half world's orcas are threatened by leftover industrial chemicals
Friday, September 28, 2018 - 07:50
in Biology & Nature
More than half of the world's killer whales are threatened by a group of toxic industrial chemicals that accumulate in their blubber and can be passed on from mother to calf. That's according to a new study led by scientists in Denmark and published in the journal Science. Killer whale populations found in the most polluted seas around Japan, Brazil, the UK or in the northeast Pacific, the authors report, are "tending toward complete collapse".