Endangered Orcas Compete With Seals, Sea Lions For SalmonHarbor seals, sea lions and some fish-eating killer whales have been rebounding along the Northeast Pacific Ocean in recent decades. But that boom has come with a trade-off: They're devouring more of the salmon prized by a unique but fragile population of endangered orcas.
Ships Slowing In Busy Channel To Protect Endangered OrcasShips moving through a busy channel off Washington state's San Juan Island are slowing down this summer as part of a study to determine whether that can reduce noise and benefit a small, endangered population of killer whales.
Study: Orcas At Risk Due To Scarcity Of Food"A large number of whales are conceiving, but when nutrition is poor, they don't sustain those pregnancies," said Sam Wasser, lead author of the paper and a biology professor at the University of Washington.
Navy Gets OK For Exercises, Says Little Effect On Orcas
Drone Tracks Health Of Endangered WhalesThe scientists flew the 4 1/2 -pound drone in the waters off Washington state's San Juan Islands for several weeks in August and September. The hexacopter flew at about 100 feet over the orcas.
NOAA Reports Third Baby Orca Born In Recent MonthsU.S. scientists following endangered killer whales from a research vessel have spotted a newborn orca off the coast of Washington state.
Navy Wants To Increase Use Of Sonar-Emitting BuoysThe U.S. Navy is seeking permits to expand sonar and other training exercises off the Pacific Coast, a proposal raising concerns from animal advocates who say that more sonar-emitting buoys would harm whales and other creatures that live in the water.
Baby Orca Born In Puget SoundThe Center for Whale Research says a baby orca has been born to the endangered population of killer whales that frequent Puget Sound.
Scientists: Orcas Among Most Contaminated Marine Mammals Scientists studying southern resident killer whales for the past decade now know they are among the most contaminated marine mammals, with pollutants particularly high in the youngest whales
Conservation Group Wants Orcas In West Coast Waters ProtectedA conservation group is asking federal officials to protect endangered killer whales in the marine waters off the West Coast.
Satellite Tagging Reveals Info On Migration Of Endangered Orcas A satellite tag attached to one endangered Puget Sound killer whale is yielding some valuable information about the migration of orcas in recent days.
Puget Sound Orcas Circle Ferry Carrying ArtifactsA large pod of orcas in Puget Sound this week has been thrilling whale watchers.