It is known that the average amount of calories used by the human brain during the day is about 300 to 400 kcal. However, assuming that a 4.5kg head protrudes 15cm horizontally from the upper body average spine line for about 8 hours a day, the amount of calories that the muscles in the back of the neck, etc., must consume to offset the moment caused by the protruded head is about 45 It is about kcal. It is about 10% to 15% of the calories your brain uses during the day. Moment is the force that tends to rotate around a point and can be expressed as:
Moment (M) = weight of object (F) x horizontal distance between the point of support and the center of gravity of the object (r)
Dinosaurs appeared about 250 million years ago, and dinosaurs excluding birds are known to have gone extinct about 66 million years ago. In addition, dinosaurs have characteristics such as bipedal or quadrupedal walking, relatively longer legs than crocodiles, and a head protruding forward from the legs. In particular, 'the head that protrudes forward from the legs' requires a lot of energy to support the head that protrudes forward during moving activities.
Meanwhile, elephants must eat plants for about 17 to 18 hours a day to survive. On the other hand, lions doze or sleep for about 18 hours a day, while humans only sleep about 7 hours a day.
What does this extreme difference between sleep time and meal time mean? It can be seen that 'calories compared to the volume of food consumed' and 'energy consumed during food intake activities' cause this difference. Elephants are relatively inefficient both in terms of 'calories to volume of food consumed' and 'energy consumed during food intake activities'. Since lions are carnivorous, they are relatively more efficient in 'calories compared to the volume of food consumed' than elephants. Since humans are omnivores and are active in an upright state, both 'calories per volume of food consumed' and 'energy consumed during food intake activities' are relatively very efficient compared to elephants.
Compared to elephants, herbivorous dinosaurs' heads protruded more forward from their legs, so it seems that the average daily energy required to maintain life was much higher than that of elephants.
Therefore, my 'Moment Starvation Theory' can be summarized as follows.
"As the volcanoes of the Cretaceous period became active, the volcanic ash blocked the atmosphere and did not receive light from the sun, and as a result, a significant portion of plants could not photosynthesize and died.
At this time, the degree to which the plants were reduced was less than the amount that the herbivorous dinosaurs could consume 'the minimum energy needed to support the moment caused by the head protruding a lot from the legs' during food intake. However, it did not go down to a level that could not consume the minimum energy required for herbivores smaller than dinosaurs.
Eventually, this led to the sudden death of most herbivorous dinosaurs alone. The death of these herbivorous dinosaurs led to the death of carnivorous dinosaurs, which eventually led to the extinction of dinosaurs."
#New #Hypothesis #Dinosaur #Extinction, #Moment #Starvation #Theory
