Assertion: otter's predator | /r/HasProperty | apex
Facets:
Source sentences:
text: Giant otters are apex predators and feed mainly on fish such as Characins and catfish.
text: The giant otter is an apex predator, and its population status reflects the overall health of riverine ecosystems.
text: River otters are apex predators in various watershed environments.
text: River otters are apex predators in their food web.