(Phys.org)—Palaeontologists who examined a new fossil found in southern California have thrown doubt on earlier claims that a "killer walrus" once existed.
Archaeology
Jan 17, 2013
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White sharks, the largest predatory sharks in the ocean, are thought of as apex predators that feed primarily on seals and sea lions. But a new study by researchers at the University of California, Santa Cruz, shows surprising ...
Plants & Animals
Sep 28, 2012
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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 the top of the ...
Archaeology
Dec 7, 2011
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The enormous decline of large, apex predators and "consumers" ranging from wolves to lions, sharks and sea otters may represent the most powerful impacts humans have ever had on Earth's ecosystems, a group of 24 researchers ...
Ecology
Jul 14, 2011
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An unprecedented decade-long study of apex predators in the Pacific Ocean found a wider range of distribution among some species than previously thought, unknown relationships between other species, and the importance of ...
Ecology
Jun 22, 2011
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An international team of scientists, led by the Institute for Ocean Conservation Science at Stony Brook University, has used DNA to determine that groups of dusky sharks (Carcharhinus obscurus) and copper sharks (Carcharhinus ...
Plants & Animals
Apr 27, 2011
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The most advanced molecular techniques contribute significantly to the identification of endangered sharks, rays and skates, collectively known as elasmobranchs, and are therefore fundamental to the enforcement of the laws ...
Plants & Animals
Jun 13, 2024
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It's a sunny day. Look out of your window. See anything unusual flying by? Look closely. There are midges, and they are not friendly.
Ecology
May 13, 2024
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Among the jagged peaks of the North Cascades, lush alpine meadows rich with berries and wildflowers blanket valleys carved by glaciers, some threaded with trickling creeks.
Plants & Animals
May 7, 2024
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A group of marine biologists specializing in shark ecology, genetics and fisheries have challenged the findings from a recent study suggesting that South Africa's white shark population has not decreased, but simply redistributed ...
Plants & Animals
Mar 5, 2024
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