Assertion: dolphin's age | /r/HasProperty | male
Facets:
Source sentences:
text: Based on the annual rings of the bony otic capsule, the age of the oldest known specimen is a male determined to be 211 years at the time of death.
text: Spinner dolphins reach sexual maturity at the age of 4 to 7 (females) and from 7 to 10 (males) years.