This is a fun one. If you need a hint, try this:
You're seeing just the top of something, and a full-size person is standing within it.
Hint No. 2: It's 2 million years old. See the full image below and read on …
It's billed as the world's largest shark jaw, measuring 9 feet (2.7 meters) tall and 11 feet (3.4 meters) across. Each tooth is the size of a pair of hands. It's being auctioned off online, and the auction closes Monday. The bid as of Friday afternoon: $746,875.
Image Credit: Heritage Auctions