Research has shown that Tetris can help reduce negative memories. People who played the game after a crash had fewer traumatic flashbacks. By the way, Tetris also helps develop cognitive abilities if you play it every day for half an hour.

We have 206 bones in total and a quarter of them are in our hands. Namely 54 bones. By the way, our feet only have 2 fewer bones than our hands. There are 52 of them. So both our hands and our feet make up half of our skeleton.

Woodpeckers peck a tree for a long time in search of food, but they never have a headache or an injury. This is due to their tongue, which wraps around their skull. It serves as a spring, softening hits and protecting them from getting a concussion.

The well-known 3 stripes of Adidas were bought for 1600 euros (≈ $2000) from a Finnish footwear company in 1952. Over the years the brand logo has changed several times but it has always contained 3 stripes.

It turns out that the clouds soaring above us weigh a lot due to all the water droplets they contain. An ordinary cloud weighs 1.1 million pounds. But a storm cloud is much larger in size and in terms of the water it contains, weighing in at 2.4 billion pounds. Why don’t they fall? The air below holds them up.

Sea otters have loose skin under their front paws that creates a so-called pocket where the animal can store food. Also, otters often hide stones there. They use them as a tool to crack mussels.

Pando is an aspen colony that has grown by cloning itself. It weighs approximately 6,600 tons and covers 108 acres. This makes it the heaviest known organism. It is assumed that the colony is around several thousand years old.

Trees, in their modern form, appeared about 360 million years ago. Finds with shark scales indicate that they’ve existed for about 420 million years. That is, the age difference between trees and sharks could be as much as 60 million years.

Instead of kneecaps, babies have pieces of cartilage. It helps them to crawl with no discomfort and adapt easier to walking. This cartilage develops into a kneecap with age and by 12 years old, it turns entirely into bone.

Scientists found that moths can save memories and experiences they had while being a caterpillar. And it influences their adulthood. This probably happens because some brain parts don’t change during the transformation from caterpillar to moth.

Octopuses don’t have a skeleton and most of their body is made up of soft tissue. This allows them to change their shape and lengthen in every possible way. Therefore, even a 600-pound octopus has no difficulty squeezing into a hole that is only a quarter of its body size.

It may seem strange because Saudi Arabia has lots of sand and camels. But in fact, all their camels are domesticated and they buy wild ones from Australia for meat. They also get special Australian sand for construction because it has unique qualities.

Both sloths and dolphins can hold their breath by slowing their digestion and heart rate. However, sloths can survive underwater for up to 40 minutes (without air). While for dolphins this usually only lasts for up to 15 minutes maximum.

When sheep are sheared, they don’t recognize each other because they look and smell different. And they start fighting for dominance. Though they have a good memory and can remember faces for years.

Brass and copper door knobs inhibit the growth of bacteria due to the metal ions. The only difference is that brass disinfects itself in 8 hours while copper does it in 4 hours. It happens because brass is an alloy that contains copper and needs more time to affect the bacteria.