From the beginning, the host told everyone—contestants, the live audience, and viewers at home—that the answers listed on the cards are things around them.
Whether it's animals, plants, or various tools, they won't be far from people's living environments.
Otherwise, if they randomly introduce some rare plant, animal, or something known to very few, the game wouldn't be worth playing.
Every contestant knows this rule. Essentially, they've received a free clue that the answers are always around them, frequently seen and encountered in life.
It won't be something obscure, and that's why this show is popular.
Audiences don't like watching scientists discuss top-level scientific issues; they want to watch programs they can understand.
At least it gives them the chance to show off some cleverness in front of their family—
"Hey, I freaking know what the answer is!"
