Assertion: osprey | /r/CapableOf | keep firm grip
Facets:
value: on slippery fish
type: TRANSITIVE-OBJECT
Source sentences:
text: Barbed pads on their feet help ospreys keep a firm grip, but they can let go of the fish if needed.
text: Osprey have acutely curved talons, and the bottom of their feet have tiny spines called "spicules" that help them maintain a firm grip on slippery fish, their main prey.