Hlbk This Near Collision Between Two Airplanes Will Make Your Heart Skip a Beat
This is the northern wheatear, a tiny insect-eating Arctic bird. Every year, half of the species travels 4,500 miles over Greenland, across the Atlantic, and down through Europe to reach western Africa. And the other half journey is even more insane. This little songbird, which is found throughout Alaska and the Canadian Arctic, weighs just under an ounce. That already makes it one of the tiniest birds to migrate, but the sheer scale of its yearly travels is staggering, as a team of German biologists recently discovered. The researchers tagged over thirty birds from both the western a
stanley cup nd eastern populations with geolocators, then returned a year later to see just where the birds had spent the frigid Arctic winter. They didn ;t have a lot of information to work from 鈥?only two western birds returned with their tags intact, and only a single tagged eastern bird made it back, but it was enough. The wheaters from eastern Canada left their homes on Baffin Island and flew the 2,000 miles to the British Isles in just four days, most likely traveling over Greenland to get there. They then head south through Europe and flew another 2,500 miles to reach the west Afri
stanley polska can country of Mauritania. It took them just 26 days to make the trip down, and a relatively leisurely 55 days to get back to Baffin Island. That the eastern population, which is already making a migration that orders of magnitude more intense than most species are capable of. But
stanley puodelis the Alaskan Jzvx How Does the iPad s Touchscreen Recognize These Trading Cards
It takes a special species like Homo sapiens to devour something designed to fend off predators. Given our obsession with spiciness, it astonishing that we haven ;t simply decided that eating thornbushes is truly delicious. Now that scientists have revealed the gene respo
stanley becher nsible for mustard spiciness, I
stanley cup predict we ;re in for some truly atomic GMO hot dog toppings. Wild mustard Boechera stricta can vary intensely in levels of spice, and for the first time researchers have tracked down the exact cause. Just two amino acid ch
stanley cup anges in a single enzyme is the root of the change, and account for that variation. It appears that this variability is a result of a case of hyper-specific population pressure. In the plant native Rockies, environmental conditions and predatory insects can vary wildly. When plants carrying the enzyme variant from Colorado were transplanted into Montana, they were ravaged by the local herbivore insect population 鈥?and vice versa. Even though the same plant, some each location was directly suited for its environment. Now we just have to wait for the genetically modified killer mustard that will inevitably follow this research. Photo by Madlen via Shutterstock EvolutionNatural SelectionScience
