A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
13
In the case of an emergency, a Crayola crayon can be used as a candle and will burn for about 15 minutes.
36
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
A group of pugs is called a grumble.
10
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15