Rephrased sentence: The fossa is a good hunter because it can climb trees and run fast.
Why this is easy to understand:
- It uses short, simple words a 6-year-old knows.
- The word "because" shows the reason — climbing and running help it hunt.
- "Climb trees" and "run fast" are clearer than more grown-up phrases like "climbing and running skills."
Other simple options:
- The fossa catches animals by climbing trees and running fast.
- Because it climbs and runs well, the fossa finds its food easily.