How can you explain the large difference in daily energy requirements between humans and small birds or small mammals?

in small birds and mammals, the ratio of body surface to volume is greater than in humans, so they lose heat faster. Accordingly, in order to maintain a constant body temperature, they must consume more energy.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.