You can see starfish in the ocean, but you’ve probably never studied a live one this closely. They have no brain, but they have five arms and a lot of “feet” on the underside of those arms. They use those feet to move around, using hydraulic engineering. Starfish also use their feet to smell. Yeah, they are weird.
- Construction Workers Play Tic-Tac-Toe
- The Most Complicated Overpass in the World