Lizardfolk are primitive humanoids that can be very dangerous when provoked. They are 6 to 7 feet tall. They are omnivores, but prefer to eat meat, particularly human flesh. Some more advanced tribes build huts and use weapons and shields. Lizardfolk fight as unorganized individuals. If their territory is being invaded, they set snares, plan ambushes, and make raids to hinder enemy supplies.
Reference: 3E Monster Manual, Pg. 128