Assertion: monotreme's skin | /r/CapableOf | stay at trap air
Facets:
value: in their fur
type: LOCATION
value: to conserve heat
type: PURPOSE
Source sentences:
text: −40 °C (−40 °F).:162–163 Some desert mammals, such as camels, use dense fur to prevent solar heat from reaching their skin, allowing the animal to stay cool; a camel's fur may reach 70 °C (158 °F) in the summer, but the skin stays at 40 °C (104 °F).:188 Aquatic mammals, conversely, trap air in their fur to conserve heat by keeping the skin dry.:162–163