› added 12 years ago

206

TIL 1/3 of classified dinosaurs may have never existed.

Read more news.nationalgeographic.com

via reddit.com

KYvGB TIL that out of the approximately 50,000 known species of spiders, only about 25 (1/20 of 1%) contain venom that can, to some degree, injure humans. You should expect to find zero to three of these species in any particular locality. The term "medically significant" spiders refer to these species.
Lpo9 TIL some Canadian police departments issue ‘positive tickets’ thanking citizens for doing something good.
R7YVQ TIL that although Hyenas appear to be dogs, they are actually more closely related to cats.
LkNRQ TIL the USA annually uses more electricity on air conditioning than every African country combined uses on everything.
wK5J TIL that the microwave oven was discovered by accident by an engineer working on radar technology during WWII. While he was standing in front of an active radar in a laboratory, the candybar in his pocket started to melt. He then tried to pop popcorn kernels with the radar to prove his idea.