Corrected sentence:
Fennec foxes and jerboas walk on hot sand without getting burned. They have furry pads on their paws.
Why this is good:
- The first sentence is fine as it was — it tells what they do and ends with a period.
- The second sentence needed a period at the end. I changed "furry socks" to "furry pads on their paws" because that is a clearer way to say how their feet are protected.
- If you want to keep the fun picture, you can write: "They have furry 'socks' on their paws." The quotes show it's a playful comparison.
Short, kid-friendly explanation: These animals have lots of fur on their feet that works like little socks, so the hot sand does not hurt them.