Correct sentence: Tigers use their stripes to hide, and then pounce when their prey comes close.
Why this is better (easy steps):
- Capitalize only the first word: write "Tigers" not "TIGERS." All caps looks like shouting.
- Use "their prey" instead of "the prey" so it sounds natural — it means the animals the tiger hunts.
- Use "and then" or "when" instead of "once" — those words are simpler for this sentence.
- Add a small comma before "and then pounce" to make the sentence easier to read.
What "pounce" means: "Pounce" means to jump on something quickly. So the whole sentence says tigers hide with their stripes and jump quickly when the animal they want to catch comes close.