During a period when circular migration between Mexico and the United States declined, border militarization led to an increase in illegal immigration, says Stanford scholar Ana Raquel Minian.
Social Sciences
Jul 1, 2013
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Long-life batteries and satellite tagging have been used to fill in the blanks of female white sharks' (Carcharodon carcharias) lifestyles. Research published in the launch edition of BioMed Central's open access journal ...
Plants & Animals
Apr 3, 2013
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A group of scientists led by Prof. Oliver P. Love try to determine how snow bunting populations are linked in space and time. Considering that the snow bunting poses an extra challenge to monitor due to its inaccessible breeding ...
Ecology
Jan 15, 2013
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(Phys.org)—The Galapagos giant tortoise, one of the most fascinating species of the Galapagos archipelago, treks slowly and untiringly across the volcanic slopes. Scientists of the Max Planck Institute for Ornithology in ...
Ecology
Nov 27, 2012
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On the coast of Ecuador, along the Pacific Ocean, on the western side of the Andes Mountains, lies the Choco rain forest. Here, Jordan Karubian, his students and local residents, whom he's enlisted as "environmental ambassadors," ...
Ecology
Oct 1, 2012
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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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An interactive tool developed by researchers from the USDA Forest Service's Pacific Southwest Research Station (PSW) will help wind energy facility operators make informed decisions on efficient ways to reduce impacts on ...
Ecology
Jan 9, 2012
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Sri Lanka's elephant population remains healthy despite decades of fighting between government and rebel forces, the first survey since the end of the nation's bloody civil war showed Friday.
Ecology
Sep 2, 2011
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A humpback whale has broken the world record for travel by any mammal, swimming at least 9,800 kilometres (6,125 miles) from the Atlantic to the Indian Ocean in search of a mate, marine biologists reported on Wednesday.
Plants & Animals
Oct 13, 2010
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The prized white marlin, sought by anglers in million dollar prize tournaments and captured incidentally in commercial fisheries, is among the most overfished marine species under international management and the subject ...
Ecology
Dec 10, 2009
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