All facts — Page 49

The human body produces about 25 million new cells per second.

Most are red blood cells, which live about 120 days. Over a lifetime, the body produces trillions of cells.

Earth receives 430 quintillion joules from the Sun every hour.

This energy is enough to power human civilization for thousands of years — if we could capture it all.

The human body contains about 37.2 trillion cells.

This estimate was calculated in 2013 by Israeli researchers. Most are red blood cells.

Every second, 4 babies are born and 2 people die in the world.

World population grows about 80 million per year. We are currently over 8 billion people.

The human brain has more connections than stars in the Milky Way.

The brain has about 100 trillion synapses, while the Milky Way has 100-400 billion stars.

The Sun will lose the ability to sustain life on Earth in about 500 million years.

As the Sun ages, it becomes brighter and hotter, making Earth uninhabitable long before it becomes a red giant.

Crows can solve multi-step puzzles.

Studies showed crows can use tools in sequence to obtain food, demonstrating planning.

The human body produces about 2 liters of mucus per day.

Mucus protects the lungs, digestive tract and nasal passages from irritants and infections.

All other planets of the solar system fit in the space between Earth and Moon.

The average Earth-Moon distance is 384,400 km. Adding all planet diameters, the total is about 380,000 km.

Domestic cats share 95.6% of their DNA with tigers.

Cats and tigers share a common ancestor and many behaviors, including hunting and territory marking.

The Sahara was a tropical ocean 50 million years ago.

Marine fossils found in the Sahara desert confirm the region was covered by a sea.

The human brain is more active at night than during the day.

Neuroimaging studies show that during sleep, especially REM phase, the brain processes information intensely.

A lobster's heart is in its head.

Like shrimp, lobsters have their heart located in the head region, near the stomach.

Diamond is made of the same material as pencil graphite.

Both are made of pure carbon. The difference is in crystal structure: diamond has atoms arranged more compactly.

The human mouth has more bacteria than people in the world.

The human mouth hosts about 700 species of bacteria and billions of individuals.

Bees can count up to 4.

Studies have shown bees can distinguish small quantities and understand the concept of zero.

The human body has about 60,000 km of nerves.

The human nervous system is a vast network connecting the brain to all parts of the body.

Earth has two temporary natural satellites besides the Moon.

Tiny asteroids are occasionally captured by Earth's gravity and orbit it temporarily before escaping.

The Sun is a middle-aged yellow-white star.

The Sun is about 4.6 billion years old — approximately halfway through its expected life.

An ant's tongue has teeth.

Ants have toothed structures on their tongues called "lingual teeth" that help clean their antennae.

The human body produces enough heat to boil 30 liters of water per day.

Human metabolism generates about 2,000 kcal of energy per day, part of which is released as heat.

Coffee is the second most consumed beverage in the world, after water.

Billions of people drink coffee daily. The coffee industry moves billions of dollars.

Flamingos turn pink from eating shrimp and algae.

Carotenoids in food pigment their feathers. Without this diet, flamingos would be white or gray.

Kangaroos can't walk backwards.

The anatomy of kangaroo legs and tail prevents backward movement. They are the only large animal that moves…