Comparing things can be quite an eye-opener and these photos illustrate just a few...
For example knowing the actual size of a dinosaur's tooth will make you glad you weren't around back then, while comparing the size of a baby monkey to a human finger just makes them even cuter.
Here are 14 fascinating comparisons that people snapped and shared!
1. His vs her big toe
2. Store-bought on the left, garden-grown on the right
3. This is how big a Tyrannosaurus tooth is
4. Yes, cacti can grow this big!
5. Shaquille O’Neal has REALLY big feet
6. Have you ever seen a Kiwi, a rarely-spotted flightless bird
7. Acacia spines...
8. Did you realize how big stop lights could be?
9. A cent from 1850 compared to a modern one
10. We told you baby monkeys are cute!
11. A military transport plane with a tank for cargo
12. Tall mushrooms
13. Guess which person loves to eat carrots!
14. This is why hail stones can cause injuries