Earth is not as round as
you thought.
Or at least, it's not a perfect sphere.
As NASA explains, "because of the force
caused when Earth rotates, the North and South Poles are slightly flat. Earth's
rotation, wobbly motion, and other forces are making the planet change shape
very slowly, but it is still round."
Hippos produce their own
sunblock.
Hippos can work on their tans without having
to worry about getting burned since their skin naturally secretes an oily red
substance that acts as a moisturizer and sunblock, according to an article
published in the journal Nature. And according to the San Diego Zoo, the red color sometimes makes onlookers
believe they're sweating blood
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