《自然》[Nature]13年6月13日出版pdf全文

nero1981

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* C. z; N. Z' n7 S4 a8 JThe cheetah is widely recognized
# c, V- A" P7 R1 ]0 Yas the fastest animal on land, with a reported top speed of 29 metres per
$ h, Y5 n; S  I4 ]6 j" fsecond. However, few precise measurements have been made and only rarely have
; ^, ]" v- U4 [0 \speeds faster than racing greyhounds (18 metres per second) been recorded. Now a
0 M/ J/ u  _1 p9 Ateam from the Royal Veterinary College, UK, working with the Botswana Predator - V! N" J7 E( M" l% j. s  ]5 ?
Conservation Trust, has used custom-built tracking collars containing GPS and
" F+ c+ f6 n. {5 p8 ~  r" G( K0 K1 oinertial measurement units to capture the locomotor dynamics of cheetahs hunting
" ^5 r2 V5 A2 J. d* n. Min the wild. The
+ M2 c* L& O- m& t, Otop speed observed was 25.9 metres per second (93 kilometres per hour). Most - G6 V0 k) f- L7 O! h6 E% D
hunts involved only moderate speeds, their success relying on a combination of : f, u3 S- ^! t# t6 h& Y; X
power, acceleration and agility. Cover: a cheetah gives chase, Serengeti
; w0 {/ W8 t" Z2 w  c$ ~National Park, Tanzania (Winfried Wisniewski/Corbis)3 C* A6 j9 R* ~  d9 h* e- R

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