4 types of Cryptobiosis that a Tardigrade can undergo in response to a threatening environment:
1. Osmobiosis: When a tardigrade is being threatened by an alteration in the amount/content of water
2. Anhydrobiosis: The lack of enough water content to sustain normal functionality, such as when a drought occurs
3. Cryobiosis: Severe change in Temperature
4. Anoxybiosis: Severe lack of oxygen
TARDIGRADES HAVE BEEN KNOWN TO SURVIVE THE FOLLOWING EXTREME CONDITIONS:
1. Osmobiosis: When a tardigrade is being threatened by an alteration in the amount/content of water
2. Anhydrobiosis: The lack of enough water content to sustain normal functionality, such as when a drought occurs
3. Cryobiosis: Severe change in Temperature
4. Anoxybiosis: Severe lack of oxygen
TARDIGRADES HAVE BEEN KNOWN TO SURVIVE THE FOLLOWING EXTREME CONDITIONS:
- temperatures as low as -200 °C (-328 °F) and as high as 151 °C (304 °F);
- freezing and/or thawing processes;
- changes in salinity;
- lack of oxygen;
- lack of water;
- levels of X-ray radiation 1000x the lethal human dose;
- some noxious chemicals;
- boiling alcohol;
- low pressure of a vacuum;
- high pressure (up to 6x the pressure of the deepest part of the ocean