Despite their small size compared with the seals of today, they had heavier, and likely more powerful jaws. Because of this, it is likely they had a stronger bite force than any seal alive today, making them formidable hunters of their time.
These early seals possessed compact bodies but were endowed with heavier, and likely more potent jaws compared to modern counterparts. This suggests that they may have had a stronger bite force than any seal alive today, thereby rendering them formidable predators of their period.