A marine mammal survey crew flying over the Beaufort Sea last month spotted surprise visitors – 13 killer whales.
Orcas have been seen before in the Arctic Ocean but are considered unusual that far north.
Their presence may be another indication of changes associated with climate warming but scientists say it’s too soon to draw conclusions.
Research biologist Paul Wade of the National Marine Mammal Laboratory says the orcas may have followed prey – gray whales – to northern waters.
The survey crew spotted the killer whales Aug. 20 just 6.2 miles northeast of Barrow, Alaska.
A second survey crew on board a research vessel spotted 25 to 30 orcas five days later northwest of Barrow in the Chukchi Sea.
- August 27, 2015- Entering the maximum security prison — with its checkpoints, razor wire barricades, metal detectors and armed guards—it’s hard to imagine an art class. Until you get to the library.
- - Both sides — and the judge — agree no matter how Pfiffner rules, the case is headed to the state’s Supreme Court.
- August 27, 2015- Population loss is a long-term trend in much of rural America, and it’s gotten more acute since 2010.
- August 27, 2015- The system was developed after the freighter Selendang Ayu lost power and grounded off of Unalaska Island in Dec. 2004. Six crewmembers were killed when the ship broke in half and spilled oil and its soybean cargo along the shoreline.