Snake Locomotion

The video explores the fascinating question of how snakes move without legs, focusing on the role of their scales. Mathematician David Hu explains that snake scales are smooth to reduce forward friction but rough when rubbed in the opposite direction, aiding movement. This design is similar to ice skates, which slide easily forward but catch when pushed sideways. Hu's team created a jacket to test this, showing that scales are crucial for movement. Mathematical models incorporating weight redistribution further explain snake slithering, drawing parallels to human walking. The research highlights the unique challenges and discoveries in understanding snake locomotion.

What is the primary function of snake scales in their movement?

• To create directional friction

• To provide camouflage

• To protect from predators

• To reduce water loss

What did researchers use to test the role of snake scales in movement?

• A high-speed camera

• A frictionless surface

• A special jacket

• A treadmill

What did the mathematical model initially fail to explain about snake movement?

• The direction of movement

• The speed of slithering

• The sound of movement

• The color of scales

How do snakes and humans similarly adjust their movement?

• By redistributing their weight

• By altering their body temperature

• By increasing their speed

• By changing their skin texture

What humorous incident is mentioned about working with snakes in the lab?

• A snake slithering into a meeting room

• A snake hiding in a computer

• A snake getting stuck in a printer

• A snake escaping into the cafeteria