Assertion: sea otter's role | /r/HasProperty | key
Facets:
Source sentences:
text: Sea otters play a key role in the coastal ocean ecosystem.
text: Sea otters have a key role to control population, specifically animals such as sea urchins and other invertebrates.
text: Whether you are in the camp that defines sea otters as the epitome of cute or with the abalone, sea cucumber, or urchin fishermen that see them as their nemesis, there is no debating that sea otters play a key role in shaping healthy nearshore ocean ecosystems.