The average ant has about 250,000 brain cells; a human has about 10 billion. It takes 40,000 ants to equal the brain of a human.
The bullet ant inflicts the most painful sting of all insects. One sting feels like being shot by a bullet.
Research has shown that frequently cracking your knuckles increases your chance of hand swelling and lowered grip strength.
If you took the DNA strands out of all the cells in your body and stretched them out in a single line, they would circle the earth five million times.
If the hair on your body was longer and thicker like animal fur, having goosebumps would fluff up your fur coat and make your hairs stand up. It would also provide more insulation to keep you warmer.
Contrary to popular belief, we have more than five senses. We are able to feel heat from a distance, sense where our body parts are and maintain equilibrium when standing, we can sense when we are itchy, tense, and hungry.
The human brain receives 400 million bits (47 Megabytes) of information every second. Of those, we are only consciously aware of 2000 bits (0.0002 megabytes).
Fire ants can build living floating rafts. When flooded, they grab onto each other using their jaws and sticky legs, forming a circular floating raft.
Earth worms have on average five hearts and no lungs. They absorb oxygen through their skin.
Silver ants reflect light, allowing them to be the only creatures active during peak hot hours in the Sahara desert. Their reflective skin allows them to stay in the sun up to 10 minutes at a time.
The human liver can regenerate itself fully. A liver that is only 30% the normal mass can regenerate to a full liver.
Chopping up onions activates a chemical reaction that releases sulfur gas. Water in the human eye reacts with sulfur gas to create sulfuric acid. Although the amount of acid is very small, it's enough to cause a burning sensation in the eye.