Which term refers to a wave-like motion used by snakes for movement?

Which term refers to a wave-like motion used by snakes for movement?

• A. Hibernate
• B. Undulation
• C. Ambush
• D. Pigment

Answer: (B)

Movement by snakes relies on wave-like motions that travel along the body. This motion is called undulation. In this mode, a series of bends or curves moves from the head toward the tail, and as these waves push against the ground, friction generates forward propulsion, allowing the snake to slither across surfaces. Undulation is the classic form of serpentine locomotion and can vary in how the waves propagate or how many points of contact the body maintains with the ground.

Hibernate refers to entering a dormant state to survive unfavorable conditions, Ambush describes a hunting tactic where an animal waits for prey, and Pigment relates to coloration in skin or scales. These terms don’t describe how snakes move, which is why undulation is the correct term.