Assertion: seal | /r/CapableOf | dive for extended periods
Facets:
value: deeply
type: DEGREE
Source sentences:
text: Seals can dive deeply and for extended periods (up to 2 hours for some species) because they have a higher concentration of hemoglobin in their blood and their large amounts of myoglobin in their muscles (both hemoglobin and myoglobin are oxygen-carrying compounds).