Assertion: infectious yawning | /r/AtLocation | chimpanzee
Facets:
Source sentences:
text: This "infectious" yawning has also been observed in chimpanzees and dogs.
text: This "infectious" yawning has also been observed in chimpanzees and dogs.
text: This "infectious" yawning has also been observed in chimpanzees, dogs, and can occur across species.
text: This "infectious" yawning has also been observed in chimpanzees and dogs.
text: This "infectious" yawning has also been observed in chimpanzees and dogs.