# Very Slippery (DD-262)

> Snakes move in four main ways: lateral undulation (serpentine movement), rectilinear movement, sidewinding and concertina movement. Lateral undulation, the most common, sends waves along the body that push against bumps and surfaces; the snake's belly scales grip in one direction and slide in the other. On very smooth surfaces there is little to push against, so a snake can thrash without moving forward. The footage shows a pale snake struggling to move on a slick surface, with the presenter.

- Department: Nature (also Science)
- First published: 2024-07-03
- Last updated: 2024-07-03
- Permalink: https://detailenjoyer.com/case/very-slippery/
- Original Reel title: Very Slippery 🐍
- Author: Marcus Easterling (DetailEnjoyer), The Detail Department

## Quick facts

- **DD-262-F01**: Snakes have four main modes of movement. _(Write-up · Exhibit A (Four modes))_
- **DD-262-F02**: Serpentine movement is the most common. _(Write-up · Exhibit B (Lateral undulation))_

## Write-up

Snakes have four main ways of moving. On a slick surface, a snake can struggle to get anywhere.

1. **Four modes**: Snakes have four main modes of movement.
2. **Lateral undulation**: Serpentine movement is the most common.
3. **Pushing**: Snakes push against surface features.
4. **Belly scales**: Belly scales grip in one direction.
5. **Smooth surfaces**: On smooth surfaces snakes struggle.

## Related case files

- [Snake Supreme (DD-694)](https://detailenjoyer.com/case/snake-supreme/): I linked more about snakes

## Reel vs. record

- **Note**: None needed.

## Video: Very Slippery: Snakes Have Four Main Ways of Moving

- Duration: 24.3 s · Published: 2024-07-03
- File: https://detailenjoyer.com/assets/videos/C89k7e4KfMo.mp4

### Transcript

DID YOU KNOW? Snakes move using various forms of locomotion, including serpentine, rectilinear, sidewinding, and concertina movements. Serpentine locomotion, the most common, involves the snake making a series of lateral waves along its body to push against the ground. This requires a high friction surface to provide the necessary resistance for the snake to propel itself forward. Without sufficient friction, the snake would struggle to gain traction and would appear to slither in place. NOW YOU KNOW!

## Questions & answers

**Q: What is the most common snake movement?**  
A: Serpentine. _(Source: Write-up · Exhibit A (Four modes) · Wikipedia: Snake locomotion)_

**Q: Which mode is used on loose sand?**  
A: Desert snakes. _(Source: Write-up · Exhibit B (Lateral undulation) · Wikipedia: Snake locomotion)_

**Q: What does serpentine movement push against?**  
A: Needs friction. _(Source: Write-up · Exhibit C (Pushing) · Wikipedia: Snake locomotion)_

**Q: What happens on a slick surface?**  
A: Little grip. _(Source: Write-up · Exhibit D (Belly scales) · Wikipedia: Snake locomotion)_

**Q: How many main modes are there?**  
A: Plus variants. _(Source: Write-up · Exhibit E (Smooth surfaces) · Wikipedia: Snake locomotion)_

## Sources

- [Wikipedia: Snake locomotion](https://en.wikipedia.org/wiki/Snake_locomotion)

## Cite this case file

Easterling, Marcus. "Very Slippery." The Detail Department (DetailEnjoyer), case file DD-262, last updated Jul 3, 2024. https://detailenjoyer.com/case/very-slippery/