20 Interesting Facts You Didn't Know

Published September 23, 2025

From the weirdest animals on earth to the mysteries of the Big Bang, our list of interesting facts will make you the most fascinating person in the room.

There are no seagulls in Hawaii._[1]
A mix between a Chihuahua and a dachshund is called a "chiweenie."_[10]
Even though dragonflies have six legs, they cannot walk._[2]
Gummy bears were originally called "dancing bears."_[20]
Sea otters have the thickest fur of any mammal, at 1 million hairs per square inch._[18]
A baby has around 30,000 taste buds. They are not just on the tongue but also on the sides, back, and roof of the mouth. Adults have about 10,000._[17]
When humans take a breath, they replace only 15% of the air in their lungs with fresh air. When dolphins take a breath, they replace 90% of the air in their lungs with fresh air._[9]
Dolphins usually breathe through their blowhole, but, in 2016, scientists discovered a dolphin with a damaged blowhole that could breath through its mouth._[13]
Feral pigs ate and completely destroyed $22,000 worth of cocaine that had been hidden in an Italian forest_[11]
Monarch caterpillars breathe through holes in the sides of their bodies_[16]
Male lobster’s bladders are in their heads, and when they fight, they squirt each other in the face with urine._[12]
The word "oysterhood" means "reclusiveness" or "an overwhelming desire to stay at home_[8]
Ancient pagan cultures, such as the Celts, believed that benevolent and helpful spirits lived in trees. Knocking on tree trunks roused a spirit for protection, which led to the saying "knock on wood."_[6]
Laughter synchronizes the brains of both speaker and listener so that they become emotionally attuned._[3]
Isaac Newton believed he was potentially part of a line of great men to receive great and ancient wisdom. He even created a special name for himself "Jehovah Sanctus Unus," or "to Jehovah, the Holy On_[4]
Hugging your cat has been shown to reduce stress and anxiety, especially for people who are dealing with illness, depression, PTSD, and other ailments._[19]
A group of monkeys in Delhi, India reportedly attacked a laboratory assistant and escaped with several coronavirus blood samples. The monkeys were later spotted in a tree chewing one of the sample collection kits._[15]
Bart Simpson's name is an anagram of BRAT. His full name is Bartholomew Jojo Simpson_[7]
An oak tree produces about 10 million acorns during its lifetime._[5]
The Muppet vampire, Count von Count from Sesame Street, is based on actual vampire myth. One way to supposedly deter a vampire is to throw seeds outside a door. Vampires are compelled to count the seeds, delaying them until morning._[14]