Question 1

Ostriches bury their heads in the sand.

Accepted Answer

Busted: Ostriches do not bury their heads in the sand when scared or to hide. This common myth likely stems from observing ostriches digging nests in the sand for their eggs or lowering their heads to the ground to blend with the landscape when a predator approaches. When truly threatened, ostriches are more likely to flee at high speeds or defend themselves with powerful kicks.

Question 2

Tardigrades can survive in the vacuum of space

Accepted Answer

Confirmed: Tardigrades (water bears) have survived direct exposure to space vacuum and cosmic radiation. In 2007, the ESA's FOTON-M3 mission exposed tardigrades to the vacuum of space for 10 days, and many survived and reproduced afterward.

Question 3

Some sources incorrectly state that the Panzer III was originally designed as a direct counterpart to the Panzer IV in the same role.

Accepted Answer

Busted: In fact, the Panzer III was intended to fight enemy tanks, while the Panzer IV was designed for infantry support.

Question 4

You need to drink exactly eight 8-ounce glasses of water every single day for optimal hydration and health.

Accepted Answer

Busted: The recommendation to drink exactly eight 8-ounce glasses of water daily is a widely spread myth and lacks strong scientific evidence. Individual hydration needs vary based on factors like activity level, climate, health conditions, and diet, as fluids are also obtained from food and other beverages. Listening to your body's thirst cues is generally a sufficient guide for most healthy adults.

Question 5

The human body replaces all its cells every seven years.

Accepted Answer

Busted: This is a common oversimplification. While many cells in the body are constantly replaced (e.g., skin cells every few weeks, stomach lining every few days), other cells, like some brain cells and bone cells, have much longer lifespans or are rarely replaced. The rate of cell turnover varies significantly across different tissues and organs.

Today's Myths

“Ostriches bury their heads in the sand.”

“Tardigrades can survive in the vacuum of space”

“Some sources incorrectly state that the Panzer III was originally designed as a direct counterpart to the Panzer IV in the same role.”

“You need to drink exactly eight 8-ounce glasses of water every single day for optimal hydration and health.”

“The human body replaces all its cells every seven years.”

“Humans use only a small fraction of their DNA”

“The Earth is perfectly round.”

“Sound can travel through the vacuum of space”

“The Great Wall of China is the only man-made structure visible from space.”

“Christopher Columbus discovered America.”

“WiFi stands for Wireless Fidelity”

“You lose most of your body heat through your head.”

“Black holes suck everything into them.”

“Mars has the largest volcano in the solar system”

“Eating carrots dramatically improves your eyesight”