Believe It Or Not, These Aren't Actually Design Flaws

Plastic Liner in a Bottle Cap

The plastic liner in the top of a plastic and metal bottle cap actually serves a very distinct purpose. They keep carbon dioxide from escaping. That's important in keeping your drink from going flat.

The Tab on a Soda Can

The hole in the tab on your soda can is actually a great way to keep your straw in place. There are endless hacks to drinking soda, but Coke definitely thought of everything. Maybe next time you can try swappning a straw for a Twizzler.

The More You Know

Before mating, the female giraffe will first urinate in the male's mouth.
Agatha Christie said she came up with many of her book plots while sitting in her bathtub while eating apples.
Hate the messy look of curling irons lying on the vanity or the toilet tank? Here's a tip for you. Use hook-and-loop tape to attach five-inch lengths of 2-in. PVC pipe to the vanity door to hold the curling irons.
Martin Luther King Jr. had a C in public speaking.

Post originally appeared on Upbeat News.