Assertion: sea otter's predator | /r/HasProperty | sea otters
Facets:
Source sentences:
text: The main predators of the sea urchin are crabs, large fish, sea otters, eels, birds and humans.
text: The development of commercial and recreational shellfish fisheries was fueled by the high abundance of benthic invertebrates that developed during the absence of their natural predator, the sea otter.