News tagged with marine predator
Elephant seal tracking reveals hidden lives of deep-diving animals
Researchers at the University of California, Santa Cruz, who pioneered the use of satellite tags to monitor the migrations of elephant seals have compiled one of the largest datasets available for any marine mammal species, ...
May 15, 2012 |
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Man vs. Shark: Australia's battle for the deep
Rolling from his surfboard, blood gushing from the wound where a shark had just ripped a big chunk of flesh from his thigh, Australian Glen Folkard had just one thought: "I'm alive."
Mar 23, 2012 |
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Sea turtles surf an ocean highway to safer habitat, Stanford research suggests
(PhysOrg.com) -- The first few days of life for a leatherback turtle are no easy walk on the beach.
Mar 02, 2012 |
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What do killer whales eat in the Arctic?
Killer whales (Orcinus orca) are the top marine predator, wherever they are found, and seem to eat everything from schools of small fish to large baleen whales, over twice their own size. The increase in hun ...
Jan 30, 2012 |
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Juvenile predation preventing Steller sea lion recovery
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 ...
Jan 18, 2012 |
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500 million-year-old super predator had remarkable vision
South Australian Museum and University of Adelaide scientists working on fossils from Kangaroo Island, South Australia, have found eyes belonging to a giant 500 million-year-old marine predator that sat at ...
Other Sciences / Archaeology & Fossils
Dec 07, 2011 |
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Marine predators in trouble: researchers
Iconic marine predators such as sharks, tunas, swordfish, and marlins are becoming increasingly rare under current fishing trends, say University of British Columbia researchers.
Dec 05, 2011 |
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Crabs put the pinch on marshlands
If you take a quick glance at the marsh next to Saquatucket Harbor in Harwich Port, Mass., you will notice right away that some of the grass is missing. The cordgrass there, and all around Cape Cod, has been slowly disappearing ...
Sep 27, 2011 |
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Climate change could turn oxygen-free seas from a blessing to a curse for zooplankton
Zooplankton can use specialised adaptations that allow them to hide from predators in areas of the ocean where oxygen levels are so low almost nothing can survive - but they may run into trouble as these areas ...
Jul 01, 2011 |
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Tracking top marine predators in a dynamic ocean
Like the vast African plains, two huge expanses of the North Pacific Ocean are major corridors of life, attracting an array of marine predators in predictable seasonal patterns, according to final results from the Census ...
Jun 29, 2011 |
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Fossil of giant ancient sea predator discovered (w/ video)
Paleontologists have discovered that a group of remarkable ancient sea creatures existed for much longer and grew to much larger sizes than previously thought, thanks to extraordinarily well-preserved fossils ...
Other Sciences / Archaeology & Fossils
May 25, 2011 |
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How can a colorblind animal change its colors to blend into the background?
How could a colorblind animal know how to change its skin color to blend into its surroundings? And what will the animal's predator "see," looking at its prey before and after it hides?
May 16, 2011 |
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The sea dragons bounce back
(PhysOrg.com) -- The evolution of ichthyosaurs, important marine predators of the age of dinosaurs, was hit hard by a mass extinction event 200 million years ago, according to a new study from the University ...
Other Sciences / Archaeology & Fossils
May 04, 2011 |
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Species loss tied to ecosystem collapse and recovery
The world's oceans are under siege. Conservation biologists regularly note the precipitous decline of key species, such as cod, bluefin tuna, swordfish and sharks. Lose enough of these top-line predators (among ...
Space & Earth / Earth Sciences
Jan 10, 2011 |
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Return of top predators is key to ecological future
Sufficient advances have been made about the importance of top predators in ecosystem function that it's time to move from discussing the issue to acting upon it, a conservation biologist from Oregon State ...
Apr 23, 2010 |
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