Assertion: cetacean's ancestor | /r/HasProperty | common
Facets:
Source sentences:
text: Fossil evidence suggests that cetaceans share a common ancestor with land-dwelling mammals that began living in marine environments around 50 million years ago.
text: Fossil evidence suggests that cetaceans share a common ancestor with land-dwelling mammals that began living in marine environments around 50 MYA.Today, they are the mammals best adapted to aquatic life.
text: Though cetaceans and humans (in common with all mammals) had a common ancestor in the distant past, it was almost certainly of distinctly inferior cognitive abilities compared to its modern descendants.
text: Though cetaceans and humans (in common with all mammals) may have had a common ancestor in the distant past, it was almost certainly of distinctly inferior cognitive abilities compared to its modern descendants.
text: Fossil evidence suggests that cetaceans share a common ancestor with land-dwelling mammals that began living in marine environments around 50 million years ago.