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These included specialized teeth, changes in the palate and diaphragm that supported more efficient breathing and metabolism, and likely features such as warm-bloodedness and fur.
From Science Daily ● Jan. 19, 2026
Despite such prior research, however, the new evidence indicates that warm-bloodedness became a major feature of mammalian history millions of years later.
From Scientific American ● Jul. 20, 2022
Paleontologists agree that early vertebrates were all cold-blooded, but they’ve debated when warm-bloodedness arose.
From Science Magazine ● Jul. 20, 2022
The authors noted that because warm-bloodedness in birds is "ancestral to pterosaurs and dinosaurs," this suggests that they were neither gigantothermic nor mesothermic.
From Salon ● May 29, 2022
The quality of warm-bloodedness is a prerogative of birds and mammals, and it means that the body keeps an almost constant temperature, day and night, year in and year out.
From The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told by J. Arthur Thomson
