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PARIS — The ancestors of mammals started to become warm-blooded around 20 million years later than previously thought, researchers recently suggested, after analysing inner-ear fossils hoping to solve “one of the great unsolved mysteries of palaeontology”.Warm-bloodedness is one of the quintessential characteristics of mammals, along with fur, but exactly when they first
Experts have recently determined the timeframe from when our oldest predecessors transitioned toward being warm-blooded, and it occurred considerably further and much faster than anticipated.
Mammals and birds produce their own body heat and control their body temperatures.
Scientists reveal origin of mammal evolution milestone: warm-bloodedness
International team of researchers finds new way to determine how body heat changed over time by examining inner ears of 56 extinct species of mammal ancestors