Most heat-tolerant animal
- WHO
- Tardigrades
- WHAT
- 150 degree(s) Celsius
- WHERE
- United Kingdom
- WHEN
- 01 January 0001
The most heat-tolerant multicellular animals are the tardigrades or water bears, a group of tiny, near-indestructible animals that are able to survive temperatures exceeding 150°C (302°F) and halt their metabolism for survival. Around 0.5 mm long, these invertebrates have survived in outer space and some have even survived the Sun's radiation.