Each king in a deck of playing cards represents a great king from history: spades - King David, clubs - Alexander the Great, hearts - Charlemagne, and diamonds - Julius Caesar.
33
Play-Doh was first manufactured as a wallpaper cleaner.
122
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Mushrooms are more closely related to humans than they are to plants.
47
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The seahorse is the only fish to have a neck.
12