T-Rex: Extrasolar planet found in...
T-Rex: THE GOLDILOCKS ZONE!
T-Rex: Scientists believe three bears live on this planet and so we're too scared to ever go there.
Dromiceiomimus: Oh my!
Utahraptor: Wait... WHICH scientists?
T-Rex: It doesn't matter. Dromiceiomimus believed it without citations!
Utahraptor: But... there are bears here!
T-Rex: Yeah, right.
T-Rex: Show me one empirical study proving that.
The author writes:
 On the good side, planets in the Goldilocks zone are known to have at least one comfy chair, one comfy bed, and one bowl of nice warm porridge.
 We bet not a single peer-reviewed scientific paper has been published with the conclusion: "Bears exist on Earth".
EDIT: A reader cites: Loring, S., and Spiess, A, "Further Documentation Supporting the Former Existence of Grizzly Bears (Ursus arctos) in Northern Quebec-Labrador", Arctic, Vol. 60, No. 1 (Mar, 2007), pp. 7-16. He comments, "Now we just need a follow-up paper that proves they still exist."