26Blood Groove
Cat's teeth have a "blood groove" that prevents suction when they bite. This allows them to pull out and bite again more quickly.
27. Before Canada was officially named Canada, other names had been suggested but rejected. Some examples are Albertsland, Borealia, Britannia, Tuponia, and others. The current name likely comes from the aboriginal word "Kanata" which means village or settlement.
28. The Danelectro electric guitar company bought a surplus of women's lipstick tubes, put a bar magnet wrapped directly in copper wire in them, and made one of the most basic and cheapest pick-ups to date.
29. The tortoises have shells not just for protection. The shells are connected directly to the tortoise's nervous system. These nerves give the shell the ability to transmit both pleasure and pain sensations.
30. A dead body left on Mars would dry out and mummify better than Egyptian mummies. The first few stages after death, algor mortis (body cools), livor mortis (blood pools), and rigor mortis (muscle stiffening) would still take place, but there would be no other overt signs of decomposition.
