Images Dated 22nd July 2004

King cheetah coat

King cheetah coat. The king cheetah (Acinonyx jubatus) has a different coat pattern to most other cheetahs, despite being of the same species. The blotched and stripy pattern is thought to be the result of a recessive mutation. When two cheetahs carrying the recessive allele mate, the king cheetah coat pattern may result. They have only been seen in the wild in Zimbabwe, Botswana and South Africa. The cheetah is the fastest land mammal, reaching speeds of over 110 kilometres per hour when hunting prey

© TONY CAMACHO/SCIENCE PHOTO LIBRARY

Dogs muzzle

Dog's muzzle. Muzzle of a domestic dog (Canis familiaris). A dog is a carnivore, with teeth that are adapted to tearing and chewing meat. One type of tooth found in carnivores is the canine tooth, one seen at centre. A dog's nose (centre left) is very sensitive to a wide range of smells

© ALAN SIRULNIKOFF/SCIENCE PHOTO LIBRARY

Animal, Bite, Biting, Canid, Canine, Canis Familiaris, Carnivore, Carnivorous, Dog, Domestic Dog, Domesticated, Growl, Growling, Hypersensitive, Mammal, Muzzle, Nature, Nose, Olfactory, Pet, Savage, Sense, Sensitive, Smell, Snarl, Snarling, Snout, Tame, Teeth, Tooth, Zoological, Zoology

Optical computer mouse

Optical computer mouse. The mouse is also cordless and has a scroll wheel. It is called an optical mouse because LED (light-emitting diode) sensors inside the mouse track the motion of the mouse as it is moved across a surface. Data describing this motion, as well as data for the commands made with the scroll wheel and clickable buttons, are all transmitted to the computer. Standard mice use an electrical cord to transmit this data, but several designs of cordless mice are available. Most use either infrared or radio waves to send the signal to the computer. The end result is a matching movement for a pointer on the computer screen. The pointer is used to interact with the computer

© Tek Image/Science Photo Library