› added 9 years ago

151

TIL Fake smiling causes real happiness

Read more science.howstuffworks.com

via reddit.com

DQL9v TIL that the prairy dog's scientific name is "Cynomys" (Greek for "dog mouse") and I think that's adorably accurate
9wZGr TIL The SR-71 Blackbird was made of titanium purchased from the Soviet Union through third world countries as they were the only supplier large enough. The SR-71 was used to spy on the Soviet Union for the rest of the cold war.
4BGw TIL that there is a Pet Poison Helpline for when your pets may have eaten something toxic, and it’s cheaper than the cost of a vet visit. However, Poison Control Centers for humans can help give advice about pets for FREE.
X0PJX TIL The blue whale penis is the largest in the animal kingdom. It is commonly cited as having an average penis length of 8 ft 2 in 9.8 ft and a diameter of 12 in to 14 in. However, its girth has also been reported to be nearer 18 in, with a single ejaculation estimated to be about 35 US pints.
ke71 TIL Chris Kyle, known as the most lethal sniper in United States history, lost his life at 38 when he tried to help Eddie Ray Routh, a veteran suffering with PTSD, by taking him to a gun range. Instead, Routh turned his gun on Kyle and killed him.