Assertion: sponge's system | /r/CreatedBy | irresponsible human behavior
Facets:
Source sentences:
text: However, because this species lives mostly on coral reefs, changes to that fragile system caused by irresponsible human behavior may threaten this sponge.
text: However, because this species lives mostly on coral reefs, changes to that fragile system caused by irresponsible human behavior may threaten the yellow tube sponge.