3 'critically endangered' B.C. killer whales are pregnant, scientists say | CBC News LoadedScientists in B.C. and Washington state are hopeful that three pregnancies discovered in the critically endangered southern resident orcas' J pod could help save the species. But other threats remain. CBC News Three critically endangered killer whales that frequent B.C.'s waters are now pregnant.That's according to aerial drone research by scientists in Washington state, and it has researchers in B.C. hopeful that the three mothers-to-be will overcome tough odds and help bring their species back from...…3 'critically endangered' B.C. killer whales are pregnant, scientists say | CBC News LoadedScientists in B.C. and Washington state are hopeful that three pregnancies discovered in the critically endangered southern resident orcas' J pod could help save the species. But other threats remain. CBC News Three critically endangered killer whales that frequent B.C.'s waters are now pregnant.That's according to aerial drone research by scientists in Washington state, and it has researchers in B.C. hopeful that the three mothers-to-be will overcome tough odds and help bring their species back from...WW…