A baby bear is commonly referred to as a cub. This term is used for the young of most bear species, including black bears, brown bears, and polar bears.
Bear cubs are usually born during the winter months, typically in a den that the mother has prepared in advance. At birth, they are very small and rely entirely on their mother for warmth, protection, and food. Cubs typically stay with their mothers for about one to three years, during which they learn vital survival skills such as foraging for food and navigating their habitat.