Earth Changes
Greek scientists are watching out for Colony Collapse Disorder, which refers to the mysteriously abrupt departure of worker bees from their hives, Kathimerini reported Saturday.
African dwarf chameleons live in habitats in southern Africa ranging from grassland to rainforest.
They engage in complex social signalling, with bright colour changes along their flanks used by females to signal interest or rejection to males, and by males to signal aggression or submission to other males, and interest towards females. Males even square off in rapid-fire, colourful signalling duels.
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©Adnan Moussalli and Devi Stuart-Fox |
Chameleons can signal others in a matter of milliseconds by brightening their flanks. This keeps down the risk of being seen by a predator. |
"Chameleons use colour change for camouflage and communication, but we don't know why some species change colour much more than others", says Devi Stuart-Fox of the University of Melbourne in Australia.
At least eight arrivals to Ben Gurion Airport were delayed Tuesday due to the severe weather conditions.
Leatherback sea turtles (Dermochelys coriacea) are the largest of all living turtles and are widely distributed throughout the world's oceans. They have been seen in the waters off Argentina, Tasmania, Alaska and Nova Scotia.
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©Brian Hutchinson, CI |
A leatherback sea turtle returns to sea in Grande Riviere, Trinidad. |
When taxonomist Frank Smith discovered the giant Palouse earthworm (Driloleirus americanus) in 1897 by, he described it as "very abundant." Nowadays, however, sightings of the worm are rare.
The only recent confirmed worm sighting was made in 2005 by a University of Idaho researcher. Before that, the giant worm had not been spotted in 17 years, since 1988.
Entomologist Quentin Wheeler of Arizona State University announced the discovery and naming of the beetle, now dubbed Orectochilus orbisonorum, during a Roy Orbison Tribute Concert on Jan. 25.
The ending of the species name, "orum," denotes it was named after a couple. If the beetle were just named after Roy it would end in "i," and for just Barbara, the name would end in "ae."
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©Charles J. Kazilek, Arizona State University |
This lateral view shows the new species of whirligig beetle, revealing its divided eyes (above and below the water line) and its white underside. |
Numerous cities suffered blackouts as heavy snowfalls caused power lines to snap and hampered the delivery of coal, used to generate most of China's electricity. Around 50 deaths so far have been blamed on the weather.
Winds up to 80 kilometres an hour are set to make already cold temperatures feel like -50 C and could cause white-out conditions on roadways, turning minor snowfalls into major headaches for drivers.
Both the islands and the mountain chain - which runs along the upper western coast of the Balkan Peninsula - were believed to have stopped growing 20 million to 30 million years ago.
Praising several retail chains that have taken the lead in refusing to sell bluefin, WWF said it was time for "retailers around the world to emulate their courageous decision... until this fish is out of danger."