Which animal is smaller than a penny and eats garden pests?

This sounds like a riddle! The answer is likely a ladybug.

Here's why:

* Smaller than a penny: Ladybugs are tiny insects, easily fitting on a penny.

* Eats garden pests: Ladybugs are beneficial insects that feed on aphids, mites, and other small insects that can damage plants.

Let me know if you'd like another riddle!