Monk seals are not highly social, and individuals tend to space themselves apart on beaches. They reach maturity at 5 to 7 years old and may have life spans of 20 to 30 years. Seal pups are usually born in the spring. After weaning, pups live off their fat while they learn to forage for themselves. In contrast, sea lions use their front flippers for swimming and rear flippers for steering.
Sea lions walk on all four flippers.
Sea lions do.