A pod of killer whales are behind the unprecedented string of killings in California.
Older female orcas tend to put off their reproduction to give wat for younger females that were more likely to mate and reproduce.
After missing at the end of 2016, the oldest known orca, nicknamed "Granny", is now officially considered dead by the Center for Whale Research.
A study published by researchers from Florida Atlantic University's Harbor Branch Oceanographic Institute and a team of scientists is evaluating the relationship between changing sea ice and beluga whale migration. They are also assessing the summer residency patterns of a number of populations over two decades of dramatic sea ice changes in the Pacific Arctic. Working in collaboration with Native hunters in Alaska and Canada, the researchers discovered that beluga whales showed an ability to deal with a changing environment.
Dead killer found in Canada died due to fungal infections most likely caused by satellite tag.
Capturing and breeding killer whales for entertainment purposes are now prohibited in California.
A group of four friends on fishing expedition spotted a pod of four female killer whales 12 miles off the coast of Chatham.
Earlier this week, researchers have spotted the world's oldest living orca named Granny in the Pacific, swimming in 'high spirits' with other whales.
Killer whales have been studied for the first time in their North Atlantic range. Compared to their Pacific Northwest counterparts that feast on Chinook salmon, the Atlantic dwellers prefer preying on minke whales.
A critically endangered population of killer whales in the Pacific Northwest may be encountering more noise pollution than in the past. A recent study suggests large passing oil tankers emit sounds at frequencies killer whales use to communicate and echolocate. Ultimately, researchers say, this could impede their ability to find food they need to survive.
The recent discover that an endangered population of Killer whales living in the Pacific Northwest preferred eating salmon in summer may lead to improved targeted conservation practices.
Whales are adversely impacted by the sounds ships make under the water. The combination of a vehicle's speed and its propeller count play a large role in noise disturbance.
This year has been an excellent start for conservationists and killer whales alike, as one famous pod off the coast of Washington State has so-far welcomed four newborns into the family after more than two years. Now some experts think the endangered animals are seeing a mini baby boom - offering new hope for the struggling species.
It is well known that women after a certain age undergo menopause, a trait that is rare in the animal kingdom. However, outside of the human species, killer whales also experience menopause, and these older females apparently make good leaders, a new study says.
Despite their fame as movie stars and entertainers, orca whales were first and foremost known as the "wolves of the sea." After all, they aren't called "killer" whales just for fun. Recently, scientists from the NOAA were reminded of this after coming upon a gruesome scene, where a pod of orcas absolutely decimated their prey until there was little left. Some forensic sleuthing has now revealed just what the victim was, and it came as something of a surprise.