The weight of a newborn bear cub is about 0.27 of the weight of a bear, and a lamb is almost 10%

The weight of a newborn bear cub is about 0.27 of the weight of a bear, and a lamb is almost 10% of the weight of a sheep. During the first decade of life, the daily weight gain of a lamb is 180 g, and the weight of a bear cub is only 2.5 g. Explain why there is such a significant difference in weight and in its increase in a newborn lamb and a honeybeast.

To answer the question, you need to go to the food chain.

Sheep and lamb are herbivores, first-order consumers. If the cub grows too slowly, both he and the mother will be eaten faster, so he needs to become large as soon as possible.

Bears, on the other hand, are predators, are practically at the very top of the food chain, so they can afford a “hitch”. In addition, they have a slower metabolism, they hibernate, and if the baby is born during or before it, it will gain weight much longer.