Corrected sentence
Pumas hunt at night and can carry animals that weigh up to five times as much as they do.
Why this is better (step by step)
- "Pumas hunt at night" is fine — it tells when they hunt.
- The second part needs a little help. Saying "carry animals five times heavier than they are" can sound a bit confusing.
- Adding the word "that" and the verb "weigh" makes the meaning clearer: "that weigh up to five times as much as they do." This shows we are comparing weights.
- "They" means the pumas. So the sentence says a puma can carry an animal that is much heavier than the puma itself.
Quick example
If a puma weighs 50 pounds, it can carry an animal that weighs up to about 250 pounds (5 × 50).
Nice job noticing the sentence — great question!