I WONDER - What Is Special About A Tardigrade?

Tardigrades, or water bears, are known for their ability to survive extreme conditions such as near absolute zero temperatures, boiling heat, intense radiation, and the vacuum of space. They achieve this by entering a state called cryptobiosis, where their metabolism nearly halts, allowing them to endure harsh environments for years until conditions improve.

What is another name for tardigrades?

• Water bears

• Grizzly bears

• Sea lions

• Polar bears

Which of the following conditions can tardigrades survive?

• High pressure

• Low humidity

• Boiling heat

• Mild temperatures

What is the term for the state that allows tardigrades to survive extreme conditions?

• Hibernation

• Cryptobiosis

• Photosynthesis

• Metamorphosis

How do tardigrades manage to survive in the vacuum of space?

• By increasing their body temperature

• By entering a state of cryptobiosis

• By consuming more oxygen

• By growing a protective shell

For how long can tardigrades remain in cryptobiosis?

• Several weeks

• A few days

• Years

• Many months