PA has the good anti-homoiothermy, anti-weary and changes the strength, the anticreep, and the good wearability, bears the chemical agent.

PA具有好的抗恒温性、抗疲劳和应力、抗蠕变性、及较佳的磨损性、化学剂性。

The Parental Care Model hypothesizes that endothermy is arisen as a consequence of selection for parental care because endothermy enables a parent to control incubation temperature.

双亲模型是指在鸟兽类中，内温性是对双亲择的结果，因内温性双亲控制抚育温度提供了保证。