OtherStuff-Responses

[|Where are dogs hearts located and are they big, stronger, and faster than our's?] [|How big is a whale's heart, does it beat faster than our's, and how strong are they?] [|How do dogs and cats digest if they don't stand properly like humans?] [|In many stories, when a whale eats a human the human can still live in the whale's stomach.Is that true??] Is it true that there is an tenth planet in our Solar System??
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