As animals grow larger, staying cool while travelling over long distances becomes more and more difficult – and this seems to be what limits their speed
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The findings suggest that global warming will be an even bigger problem for large animals than previously thought. “If our model is correct, larger animals will have to reduce their activity in general or they will have to shift towards more nocturnal behaviour,” saysDyer and his colleagues started by compiling a database of the maximum sustained speeds of more than 500 species of animal, from
The issue is that muscles are fundamentally very inefficient, says Dyer. “For every 100 joules of chemical energy that gets pumped into your muscles, 70 of those joules are just turned into heat.”
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