We have all heard that reptiles are cold-blooded animals. But what does that actually mean? While textbooks state that their body temperature depends on the environment, in reality, the difference between a lizard's temperature and the air can be as much as 20 degrees. Herpetologist Leonid Neimark will explain the mechanisms behind this phenomenon. A graduate of the Department of Vertebrate Zoology at Moscow State University, Neimark specializes in the ecology of desert and semi-desert reptiles. Entry: donation (any Armenian banknote). Registration via the form at lettersandnumbers.am. Pet-friendly.