› added 5 years ago

311

TIL about the Cleaner Shrimp and how it operates a Cleaning Station in the sea. The Shrimp waves its antenna to signal its availability to approaching fishes and the fish changes color from light to dark indicating that it wants to be cleaned , the fish don’t eat the shrimp that rid them of pests

Read more today.duke.edu

via reddit.com

7paP TIL in 2006 a man was able to buy $150 of groceries with a fake $200 bill. The front side had a picture of George Bush and the reverse a picture of the white house with various signs on the lawn, one sign said “WE LIKE BROCCOLI”.
ad0L TIL there are cone snails that use insulin to hunt. They release a highly concentrated cloud of insulin that severely reduces the blood sugar in prey, making them too weak to escape.
KOY1B TIL While on the run the once drug lord Pablo Escobar burned two million dollars to keep his family warm at an unpowered mountainside hideout.
VMr74 TIL 20 people were killed at an Italian ski resort in 1998 when a US Marine Corps aircraft, flying over 1,600 feet below minimum height standards, cut the cable supporting their gondola. The pilot was acquitted of manslaughter, and the United States reimbursed 75% of Italy's victim compensation fund
LkO8Z TIL Ulysses S. Grant's autobiography was sold by 10,000 agents, many of whom were former Union soldiers who canvassed the northern states while wearing their old uniforms. It was a method devised by Mark Twain, the publisher. It made a fortune for Grant's widow, who received a 75% royalty.