Assertion: beaver | /r/HasAspect | many adaptations
Facets:
Source sentences:
text: The beaver has many adaptations that conserve oxygen, including large lungs, a big liver that stores oxidized blood and slow circulation to its extremities, allowing the animal to stay submerged for up to 15 minutes.
text: Beavers have several adaptations that help them in the water, aiding in survival.