OS­TRICHES

Runner's World (UK) - - HUMAN RACE -

‘The fastest two-legged an­i­mals. They can run at more than 40 miles per hour. They have long legs rel­a­tive to their body size, which gives them a long step. Un­like the chee­tah, which is ex­hausted after a sprint, os­triches can run fast for longer dis­tances. A study found their springy leg ten­dons al­low them to run while ex­pend­ing 50 per cent less en­ergy than hu­mans.’

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