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Horses Never Forget Human Friends
March 19, 2010 11:02 AM - Jennifer Viegas, Discovery News
Human friends may come and go, but a horse could be one of your most loyal, long-term buddies if you treat it right, suggests a new study. Horses also understand words better than expected, according to the research, and possess "excellent memories," allowing horses to not only recall their human friends after periods of separation, but also to remember complex, problem-solving strategies for ten years or more.
EU countries block bluefin tuna ban
March 19, 2010 06:43 AM - Ian Traynor, guardian.co.uk
A U.S.-backed proposal to ban the export of Atlantic bluefin tuna prized in sushi was rejected Thursday by a U.N. wildlife meeting, with scores of developing nations joining Japan in opposing a measure they feared would devastate fishing economies. It was a stunning setback for conservationists who had hoped the 175-nation Convention on International Trade in Endangered Species, or CITES, would give the iconic fish a lifeline. They joined the proposal's sponsor Monaco in arguing that extreme measures were necessary because the stocks have fallen by 75 percent due to widespread overfishing. "Let's take science and throw it out the door," said Susan Lieberman, director of international policy with the Pew Environment Group in Washington. "It's pretty irresponsible of the governments to hear the science and ignore the science. Clearly, there was pressure from the fishing interests. The fish is too valuable for its own good."
Eggshell of extinct giant bird provides ancient DNA
March 18, 2010 09:12 AM - University of Oxford
In a world first an international team of researchers have successfully extracted ancient DNA from the eggshells of various species of extinct birds. The research, published in scientific journal Proceedings of the Royal Society B, shows that fossil eggshell is a previously unrecognised source of ancient DNA and can provide exceptional long-term preservation of DNA in warmer climates. The findings will boost research in archaeology and biology where species identifications can add significantly to our understanding of biodiversity, evolutionary processes, past environmental change and dispersal of animal and human populations.
Blue Fin Tuna Decline and Fall
March 17, 2010 12:38 PM - Andy Soos, ENN
The Atlantic blue fin tuna is one of the largest, fastest, and most gorgeously colored of all the world’s fishes. Their torpedo shaped, streamlined bodies are built for speed and endurance. Their coloring (metallic blue on top and silver white on the bottom) helps camouflage them from above and below. They have an average size of 6.5 feet and 550 pounds. Unfortunately for them they are also delicious and may be on the brink of extinction due to overfishing. European Union ambassadors agreed to propose protecting blue fin tuna as an endangered species on March 10, a move that would effectively ban international trade in the species.
Shrimp Under Glacier
March 16, 2010 03:08 PM - Andy Soos, ENN
Life thrives where one least expects it. In a surprising discovery about where life can exist, scientists for the first time found a curious shrimp like creature and a piece of a jellyfish beneath a massive Antarctic ice sheet. Six hundred feet below the ice where no light shines, scientists had figured nothing much more than a few microbes could exist. One day a scientist dropped a probe and camera beneath this thick glacier and found something more than mere microbes.
48 Kauai Species Protected Under the Endangered Species Act
March 15, 2010 09:19 AM - Tierra Curry, Center for Biological Diversity
HONOLULU— In response to a 2004 petition and two lawsuits from the Center for Biological Diversity, the U.S. Fish and Wildlife Service announced today that it is finalizing listing for 48 species from the island of Kauai with designation of critical habitat. Most of the species are plants, and many have been waiting decades for protection. Two birds, Akekee (Kauai akepa) and Akikiki (Kauai creeper), were also included.
Amazon Droughts and Greening
March 9, 2010 03:01 PM - Andy Soos, ENN
The sensitivity of Amazon rain forests to dry season droughts is still poorly understood, with reports of enhanced tree mortality and forest fires on one hand, and excessive forest greening on the other. In a current story there is a report that previous conclusions of large scale greening of the Amazon as a result of drought are not reproducible. Approximately 11%-12% of these drought stricken forests display greening, while, 28%-20% show browning or no change, and for the rest, the data are not of sufficient quality to characterize any changes. These changes are also not unique; approximately similar changes are observed in non-drought years as well.
West Africa mangroves impacted by salt extraction
March 8, 2010 06:46 AM - Felicity Thompson, Reuters
Salt is precious in poverty-stricken coastal West Africa, but conservation experts say efforts to extract it are laying waste to mangrove swamps, causing erosion and ravaging fish stocks. In Sierra Leone, one of Africa's poorest nations still recovering from a 1991-2002 civil war, lawmakers are preparing a bill to join a seven-nation charter to protect the region's mangrove forests. Conservation group Wetlands International says the initiative is essential for West Africa to save the 800,000 hectares (2 million acres) of mangrove swamps it has left, less than a third of the 3 million hectares it started with.
All Fish Tested from U.S. Streams Found Contaminated with Mercury
March 5, 2010 06:51 AM - David Gutierrez, Natural News, Organic Consumers Association
In a new study conducted by the U.S. Geological Survey (USGS), every single fish tested from 291 freshwater streams across the United States was found to be contaminated with mercury. "This study shows just how widespread mercury pollution has become in our air, watersheds and many of our fish in freshwater streams," said Interior Secretary Ken Salazar.
Pliocene Hurricaines
March 2, 2010 05:08 PM - Andy Soos, ENN
The Pliocene epoch is the period in the geologic timescale that extends from 5 million to 2 million years before present. Although scientists know that the early Pliocene had carbon dioxide concentrations similar to those of today, it has remained a mystery what caused the high levels of greenhouse gas and how the Pliocene’s warm conditions, including an extensive warm pool in the Pacific Ocean and temperatures that were roughly 4 degrees C higher than today’s, were maintained. In a paper published February 25 in Nature, Kerry Emanuel and two colleagues from Yale University’s Department of Geology and Geophysics suggest that a positive feedback between tropical cyclones — commonly called hurricanes and typhoons — and the circulation in the Pacific could have been the mechanism that enabled the Pliocene’s warm climate.