Sentences with word «endothermy»

Today, only birds and mammals are able both to produce their own body heat (this is known as endothermy) and maintain it at a high, stable temperature (homeothermy).

For example, from the family cat whose «temperature is about the same whether she is asleep in the shade or running about in the sun» we learn about the principle of endothermy («heat from within») that mammals use to keep their body temperatures more or less constant.

«This strategy of deriving energy from the sun is described as ectothermy (outside heat) and gives reptiles the advantage of having a warm body without the high good costs associated with endothermy,» says McGowan.

Then he'll make CT scans of fossil skulls of ancient birds and dinosaurs to see when turbinal ridges, and presumably endothermy, first appeared.

Although he notes that the argument over dinosaur physiology involves a number of factors — including histology and adaptations for rapid movement — Hutchinson says that Köhler's study provides additional evidence for dinosaur endothermy.

«The growing weight of evidence has been winning over scientists, myself included, to the view that endothermy evolved quite early in dinosaurs and was inherited by birds,» he says

Ectothermy is the «normal» way to be; warm - bloodedness, or endothermy, is found only in mammals and birds.

So far, he says, they are the first and only structures with a direct correlation to high ventilation rates, which are key to endothermy.