How where vikings ship different from roman ships?

Viking ships, such as longships, were designed for speed and agility, featuring a shallow draft that allowed them to navigate both open seas and shallow rivers. They had a symmetrical hull, enabling them to reverse direction quickly without turning around. In contrast, Roman ships were typically bulkier, built for cargo and troop transport, focusing on stability rather than speed. Roman vessels often had a deeper draft and were used primarily in the Mediterranean, emphasizing trade and naval warfare rather than exploration.