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March 28, 2024, 03:58:36 AM
Funfani.com - Spreading Fun All Over!IMAGE CORNERWallpapers/Cool ImagesAnimals and Wildlife10 Interesting Facts You Didn't Know about Animals
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Rhea Thomas
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« on: July 24, 2009, 02:58:22 AM »



Myths and mysteries make the fascinating, but even odd creatures ought to be understood. We explore a few recent findings, common misconceptions and amazing adaptations. - Ben Mauk

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Rhea Thomas
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« Reply #1 on: July 24, 2009, 02:59:35 AM »



Crocodiles Swallow Stones for Swimming
The stomach of a crocodile is a rocky place to be, for more than one reason. To begin with, a croc's digestive system encounters everything from turtles, fish and birds to giraffes, buffaloes, lions and even (when defending territory) other crocodiles. In addition to that bellyful-o'- ecosystem, rocks show up too. The reptiles swallow large stones that stay permanently in their bellies. It's been suggested these are used for ballast in diving.
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« Reply #2 on: July 24, 2009, 03:00:06 AM »



Whale Milk Not On Low-Fat Diets
Nursing a newborn is no "small" feat for the whale, whose calf emerges, after 10 to 12 months in the womb, about a third the mother's length (that's a 30-foot baby for the Blue whale). The mother squirts milk into the newborn's mouth using muscles around the mammary gland while the baby holds tight to a nipple (yes, whales have them). At nearly 50 percent fat, whale milk has around 10 times the fat content of human milk, which helps calves achieve some serious growth spurtseas much as 200 pounds per day.
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« Reply #3 on: July 24, 2009, 03:00:36 AM »



Birds Use Landmarks to Navigate Long Journeys
Can you imagine a road trip vacation without missed exits, stubborn drivers or map-folding disasters? Of course noteyou're not a bird. Pigeons can fly thousands of miles to find the same roosting spot with no navigational difficulties. Some species of birds, like the Arctic tern, make a 25,000 mile round-trip journey every year. Many species use built-in ferromagnets to detect their orientation with respect to the Earth's magnetic field. A November 2006 study published in Animal Behaviour suggests that pigeons also use familiar landmarks on the ground below to help find their way home.
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« Reply #4 on: July 24, 2009, 03:01:36 AM »



For Beavers, Days Get Longer in Winter
Beavers become near shut-ins during winter, living off of previously stored food or the deposits of fat in their distinctive tails. They conserve energy by avoiding the cold outdoors, opting instead to remain in dark lodgings inside their pile of wood and mud. As a result these rodents, which normally emerge at sunset and turn in at sunrise, have no light cues to entrain their sleep cycle. The beaver's biological sense of time shifts, and she develops a "free running circadian rhythm" of 29-hour days.
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« Reply #5 on: July 24, 2009, 03:02:06 AM »



Mole-Rats aren't Blind
With their puny eyes and underground lifestyle, African mole-rats have long been considered the Mr. Magoos of rodents, detecting little light and, it has been suggested, using their eyes more for sensing changes in air currents than for actual vision. But findings of the past few years have shown that African mole-rats have a keen, if limited, sense of sight. And they don't like what they see, according to a report in the November 2006 Animal Behaviour. Light may suggest that a predator has broken into a tunnel, which could explain why subterranean diggers developed sight in the first place.
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