Assertion: cuttlefish's squid | /r/HasProperty | observed engaging
Facets:
value: in amazing feats of intelligence
type: OTHER
Source sentences:
text: Octopi, cuttlefish, and squids - all cephalopods - have been observed engaging in amazing feats of intelligence (perhaps unsurprising, as cuttlefish and octopuses have the highest brain-to-body mass of all invertebrates).