Answer:
Whales are among the largest animals in the world.
Explanation:
This is the statement that is a fact. A fact is a statement that is backed up by unbiased, falsifiable evidence. This is different from an opinion, which does not require evidence and instead, reflects the personal opinion of a particular person. In this case, saying that whales are "fascinating" and "cool" is an opinion, because there is no evidence to support the objective truth of it. Saying that they will be extinct in five years is similarly not a fact because we cannot know this for sure (even when we have good reasons for thinking this). However, we do know that it is an objective truth that whales are among the largest animals in the world.
