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.

模型是指在鸟兽类中，内温性是对选择结果，因内温性控制抚育温度提供了保证。

In all cases no one primarily recurred.Conclusions:Endoscopic treatment by endothermy heater forcels biopsy is an effective and safe therapetic method for flat colonic adenoma.

内镜下热活检钳高频电灼治疗大肠扁平方法切实可、安全可靠，在治疗上有一定实用价值。