Assertion: sea sponge | /r/AtLocation | earth
Facets:
Source sentences:
text: This in turn indicates that the sea sponges were likely the first animals to have appeared on Earth.
text: This study provides strong evidence that sea sponges appeared on the Earth much earlier than any other animals.
text: Their results provide strong evidence that sea sponges appeared on Earth 640 million years ago, much earlier than any other animal life form.