Question

This snake has developed a special adaptation ( such as a flat body ) to live in water​

Answer 1

Water snakes are non-venomous snakes found in North America. ... may be an evolutionary adaptation of the water snakes to avoid predation.” ... In contrast, “water snakes have a narrower, rounder head, a longer, more slender body ... of significant water source, such as rivers, lakes, ponds and marshes

Answer 2

A snake's main adaptation to life is its very form. With no legs, arms, ears and other appendages, it can slither through grass or among rocks without causing disturbance that might frighten prey. It can enter narrow holes in the ground made by rodents, find those rodents and eat them.