1.3K views · 66 reactions | The cuttlefish uses an internal structure called a cuttlebone to maintain neutral buoyancy, allowing it to "hover" in place better than any scuba diver. Watch this amazing adaptation at work in our Tentacles exhibit. | Texas State Aquarium | Facebook

11M views · 131K reactions | Without a second thought, this Army veteran left his mail truck and ran toward a burning building. He doesn't call himself a hero: https://on.rocne.ws/2I2hjKE | Humankind | Facebook