Wolves have two layers of fur, an undercoat and a top coat, which allow them to survive in temperatures as low at minus 40 degrees Celsius! In warmer weather they flatten their fur to keep cool.

Carbon monoxide can kill a person in less than 15 minutes.

In an episode of the 1962 cartoon The Jestons, Jane Jetson is talking through a video phone. The phone number of The Jetsons was VENUS-1234.

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