The 230,000-plus porpoises (and dolphins) in the North and Baltic seas use sound to navigate, locate prey, and find mating partners. Interference with that could, indeed, effectively kill them.
Over 8,700 birds and other animals have been seized - and 4,000+ people arrested - in what appears to be a large-scale crackdown on the black market Latin American bird trade.
Senseless killing of bears, wolves and caribou can be avoided, but the Canadian oil industry and government are putting profits before responsible environmental welfare.
Sealing - a grotesque business that involves killing seals for both their fur and meat - may soon see its last days in Canada.
As global warming threatens the wellbeing of Alaskan walruses, the government has exacerbated the issue.
Humane Society International and heavy metal musicians are calling upon the Canadian government to cancel the 2011 commercial seal killings.