Assertion: isthmus | /r/CapableOf | miss in amphibian
Facets:
Source sentences:
text: The isthmus may be missing in amphibians, birds and among mammals - Monotremes, certain Marsupials, Cetaceans, Carnivores and Rodents.
text: The isthmus may be missing in amphibians, birds and among mammals-monotremes, certain marsupials, cetaceans, carnivores, and rodents.