department of biological evolution, faculty of biology, moscow state university andrey yuryevich zhuravlev andrey yuryevich hellothank you very much for taking the time to come to the studio. hello, thank you for inviting me and forcing me to immediately fix you warm like a cop, not inside, but warm. feel, uh, warm, almost everything just heats up, we are alone in different ways due to our internal processes. these are warm-blooded, and others due to actual energy of the sun, such as the huge ones that, even without the sun, perfectly maintain their body temperature constantly above the level of the environment. warm-bloodedness is a strange evolutionary leap that didn't happen to everyone in the first place, happened to some in some specific conditions. and how we imagine it happened approximately. why, look at the question. why is it difficult to answer if it happened once it happened once and happened, perhaps by accident, but you would probably say that it happened more than once times on our planet that some creatures are independent of each other have become warm-blooded. in such a case, we can think about