Arctic sea ice is now declining at a rate of 12.8 percent per decade - 2012 had the lowest amount of summer ice on record. The drastic change has numerous implications for Arctic ecosystems, from increased shipping - the ...
Environment
Jan 23, 2019
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More than half of the world's killer whales are threatened by a group of toxic industrial chemicals that accumulate in their blubber and can be passed on from mother to calf. That's according to a new study led by scientists ...
Environment
Sep 28, 2018
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More than 40 years after the first initiatives were taken to ban the use of PCBs, the chemical pollutants remain a deadly threat to animals at the top of the food chain. A new study, just published in the journal Science, ...
Plants & Animals
Sep 27, 2018
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An endangered orca found dead off Vancouver Island in Canada earlier this month died after a failed pregnancy caused a bacterial infection, officials said Tuesday.
Plants & Animals
Dec 16, 2014
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Whole genome sequencing has revealed a global fall in the numbers of killer whales during the last Ice Age, at a time when ocean productivity may have been widely reduced, according to researchers at Durham University.
Ecology
Feb 4, 2014
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Found in every ocean around the world, killer whales are a force to be reckoned with globally. Their remarkable social bonds and sophisticated hunting techniques make them top predators in their salty domain. For many years, ...
Plants & Animals
Jul 11, 2013
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When early humans became carnivores, their higher-quality diet allowed mothers to wean babies earlier and have more children, with potentially profound effects on population dynamics and the course of human evolution, according ...
Plants & Animals
Apr 18, 2012
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A new study suggests that the impact of predation on juvenile Steller sea lions in the Gulf of Alaska has been significantly underestimated, creating a "productivity pit" from which their population will have difficulty recovering ...
Ecology
Jan 18, 2012
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When both a predator and its prey are conservationally at risk, it can be difficult to find the right balance of ecosystem management to sustain and protect both.
Ecology
Nov 9, 2011
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In a study published online this month in the Journal of Heredity, NOAA researchers and others, using DNA testing to fill in a missing link in the lives of killer whales that seasonally visit Washington's Puget Sound, have ...
Plants & Animals
Jul 21, 2011
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