Whales are threatened by a variety of human activities off the West Coast of the United States, including fishing, ship traffic, and pollution. Overlap between these stressors can compound effects on whale populations, but ...
Plants & Animals
Apr 6, 2022
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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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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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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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NOAA's Fisheries Service scientists studying the cooperative hunting behavior of killer whales in Antarctic waters observed the animals favoring one type of seal over all other available food sources, according to a study ...
Plants & Animals
Mar 30, 2011
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Scientists in Scotland, Canada and the US have proposed a new method to identify priority areas for whale conservation. The team's findings, published in Animal Conservation, suggest that even small protected areas, identified ...
Ecology
Dec 16, 2009
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