News tagged with elephants
Wild brown bear observed using a tool
(PhysOrg.com) -- Because brown bears are so reclusive, not to mention dangerous to be around, not a lot is really known about their brain power. This is actually rather odd because bears have the largest brains ...
Mouse to elephant? Just wait 24 million generations
Scientists have for the first time measured how fast large-scale evolution can occur in mammals, showing it takes 24 million generations for a mouse-sized animal to evolve to the size of an elephant.
Jan 30, 2012 |
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Researchers show elephants really do have a sixth toe
(PhysOrg.com) -- Sometimes it seems, nature finds it must resort to some trickery to respond appropriately to changing conditions. Take the elephant, for example. Way back in time, say fifty million years ...
Elephants are quick learners, offer helping hand
Elephants quickly learn to lend each other a helping hand - ah, make that a helping trunk.
Mar 07, 2011 |
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Elephant bird probably wiped out by nest raiders and habitat loss
(PhysOrg.com) -- Sir David Attenborough has returned to the island of Madagascar to discover the fate of the elephant bird, the largest bird ever to live on Earth, and to make a BBC documentary about it: "Attenborough ...
Size of mammals exploded after dinosaur extinction
Researchers demonstrate that the extinction of dinosaurs 65 million years ago made way for mammals to get bigger - about a thousand times bigger than they had been. The study, which is published in the prestigious ...
Other Sciences / Archaeology & Fossils
Nov 25, 2010 |
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Robotic arm shaped like an elephant's trunk (w/ Video)
(PhysOrg.com) -- A German automation company has come up with a new design for a flexible robotic arm, taking inspiration from the trunk of an elephant.
Ants take on Goliath role in protecting trees in the savanna from elephants
(PhysOrg.com) -- Ants are not out of their weight class when defending trees from the appetite of nature's heavyweight, the African elephant, a new University of Florida study finds.
Sep 02, 2010 |
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Elephants ready to rumble at sound of bees (w/ Video)
(PhysOrg.com) -- For the first time elephants have been found to produce an alarm call associated with the threat of bees, and have been shown to retreat when a recording of the call is played even when there ...
Apr 26, 2010 |
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Extinct moa rewrites New Zealand's history
(PhysOrg.com) -- The evolutionary history of New Zealand's many extinct flightless moa has been re-written in the first comprehensive study of more than 260 sub-fossil specimens to combine all known genetic, ...
Other Sciences / Archaeology & Fossils
Nov 18, 2009 |
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Diet secrets of 'the Royals' -- Elephant tail hair isotopes show cattle out-munch pachyderms
Two weeks after the rains begin, an elephant family named "the Royals" usually switches to a grass diet to bulk up for pregnancy and birth. But when they wandered off their African reserve one rainy season, ...
Apr 13, 2009 |
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Elephant seal tracking reveals hidden lives of deep-diving animals
Researchers at the University of California, Santa Cruz, who pioneered the use of satellite tags to monitor the migrations of elephant seals have compiled one of the largest datasets available for any marine mammal species, ...
May 15, 2012 |
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Mini-mammoths lived on Crete: scientists (w/ Video)
(Phys.org) -- The smallest mammoth known to have ever lived has been identified by Natural History Museum scientists, and is reported in the journal Proceedings of the Royal Society B today.
Other Sciences / Archaeology & Fossils
May 09, 2012 |
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Why bigger animals aren't always faster (w/ Video)
New research in the journal Physiological and Biochemical Zoology shows why bigger isn't always better when it comes to sprinting speed.
Apr 30, 2012 |
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Egg-laying beginning of the end for dinosaurs
Their reproductive strategy spelled the beginning of the end: The fact that dinosaurs laid eggs put them at a considerable disadvantage compared to viviparous mammals. Together with colleagues from the Zoological ...
Other Sciences / Archaeology & Fossils
Apr 17, 2012 |
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Elephant
Elephants are large land mammals of the order Proboscidea and the family Elephantidae. There are three living species: the African Bush Elephant, the African Forest Elephant and the Asian Elephant (also known as the Indian Elephant). Other species have become extinct since the last ice age, the Mammoths, dwarf forms of which may have survived as late as 2,000 BC, being the best-known of these. They were once classified along with other thick skinned animals in a now invalid order, Pachydermata.
Elephants are the largest land animals. The elephant's gestation period is 22 months, the longest of any land animal. At birth it is common for an elephant calf to weigh 120 kilograms (260 lb). They typically live for 50 to 70 years, but the oldest recorded elephant lived for 82 years. The largest elephant ever recorded was shot in Angola in 1956. This male weighed about 12,000 kilograms (26,000 lb), with a shoulder height of 4.2 metres (14 ft), a metre (yard) taller than the average male African elephant. The smallest elephants, about the size of a calf or a large pig, were a prehistoric species that lived on the island of Crete during the Pleistocene epoch.
The elephant has appeared in cultures across the world. They are a symbol of wisdom in Asian cultures and are famed for their memory and intelligence, where they are thought to be on par with cetaceans and hominids. Aristotle once said the elephant was "the beast which passeth all others in wit and mind". The word "elephant" has its origins in the Greek ἐλέφας, meaning "ivory" or "elephant".
Healthy adult elephants have no natural predators, although lions may take calves or weak individuals. They are, however, increasingly threatened by human intrusion and poaching. Once numbering in the millions, the African elephant population has dwindled to between 470,000 and 690,000 individuals according to a March 2007 estimate. While the elephant is a protected species worldwide, with restrictions in place on capture, domestic use, and trade in products such as ivory, CITES reopening of "one time" ivory stock sales, has resulted in increased poaching. Certain African nations report a decrease of their elephant populations by as much as two-thirds, and populations in certain protected areas are in danger of being eliminated Since recent poaching has increased by as much as 45%, the current population is unknown (2008).
For more information about Elephant, read the full article at
Wikipedia.
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