Question

What type of locomotion would a snake use in a grassy area that has a few rocks and twigs or a pile of brush: lateral undulation, slide pushing, rectilinear, concertina, sidewinding, or saltation?

Answer 1

Option 1st that is lateral undulation is the correct answer.

In lateral undulation waves of lateral bending propagated along the body. During bend contraction the surface object like rocks, twigs or pile of brush exert force against it which propel the snake forward.

Slide pushing occurs when a snake try to escape quickly on a smooth surface.

Rectilinear locomotion is occured in large snakes in which belly scales are pushed and pulled upward from the ground.

Concertina locomotion is used in crawling through tunnels or narrow passages and in climbing.

Sidewinding is used by many snakes crawling on smooth or slippery surfaces.