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The cheetah is widely recognized " W3 V, U7 n; p' c
as the fastest animal on land, with a reported top speed of 29 metres per + _+ Z0 S1 D- ~/ ~5 h/ f" T% |! K, ysecond. However, few precise measurements have been made and only rarely have 4 Y2 X `1 W3 m0 B0 i& O4 u% xspeeds faster than racing greyhounds (18 metres per second) been recorded. Now a M( S8 e9 x8 y" ~
team from the Royal Veterinary College, UK, working with the Botswana Predator 7 m* b& M$ ?0 E4 i0 y. oConservation Trust, has used custom-built tracking collars containing GPS and 1 P4 J, v4 J' C( Z& n
inertial measurement units to capture the locomotor dynamics of cheetahs hunting % W3 w- s7 r. d% X
in the wild. The 4 Y/ F& B$ U3 d# l1 Q8 i- W1 f! Etop speed observed was 25.9 metres per second (93 kilometres per hour). Most 8 y9 U- _. u% x- s
hunts involved only moderate speeds, their success relying on a combination of 5 f0 {. g. H- Z* o" S! [# {power, acceleration and agility. Cover: a cheetah gives chase, Serengeti 6 t2 l: D8 W8 o; n
National Park, Tanzania (Winfried Wisniewski/Corbis) % M: \% ~8 D9 Q7 _1 ^作者: 懵懂干细胞 时间: 2013-6-14 07:37
谢谢分享作者: zorro 时间: 2013-6-14 08:12
thanks作者: Boas 时间: 2013-6-14 09:57
哈哈哈哈，感谢分享。作者: dahui 时间: 2013-6-14 12:31
thank you for sharing 作者: yuheng 时间: 2013-6-14 12:54
谢谢作者: tpwang 时间: 2013-6-14 16:30
回复 nero1981 的帖子 $ a1 z9 u+ o2 U6 [. S b/ a4 \/ C, l; t3 X
thanks作者: exin11 时间: 2013-6-15 08:34
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