《自然》[Nature]13年6月13日出版pdf全文

nero1981

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The cheetah is widely recognized
" c! J8 V  I0 O1 was the fastest animal on land, with a reported top speed of 29 metres per % M+ ^5 i( C/ B/ z. Z$ @! p
second. However, few precise measurements have been made and only rarely have $ B5 H: Y8 S1 ^0 ?+ L) e! ]
speeds faster than racing greyhounds (18 metres per second) been recorded. Now a
3 h% A& S$ P  r7 V" y4 F. nteam from the Royal Veterinary College, UK, working with the Botswana Predator 0 I- ^: S% z! A" E7 z6 u$ M+ [# e
Conservation Trust, has used custom-built tracking collars containing GPS and
( L! [, j' j6 F& M) r( i# H+ oinertial measurement units to capture the locomotor dynamics of cheetahs hunting . T5 T- W) o! S% q9 w6 t( m
in the wild. The
( t+ b" h6 d: x1 `top speed observed was 25.9 metres per second (93 kilometres per hour). Most ) Y% n4 a7 `; ?7 P
hunts involved only moderate speeds, their success relying on a combination of
3 j" Q% P) i/ K  [! B. l) Zpower, acceleration and agility. Cover: a cheetah gives chase, Serengeti
& z+ L0 f! D" m8 UNational Park, Tanzania (Winfried Wisniewski/Corbis)
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