The Horn shark lays conical shaped eggs with a spiral flange running around the outside, which enables the female to wedge it into a crevice, making it difficult for predators to access.
27. Dinner was once the main meal of the day, served around one or two in the afternoon, while 'supper' was a much lighter meal, or even just a snack, eaten around sundown.
28. A week after the Kent State massacre in 1970, a Gallup poll revealed nearly 60% placed total blame on the students, while only 10% blamed the guardsmen.
29. Most animals are digitigrade, i.e., they walk on their digits or toes. Birds, cats, dogs etc are examples and what most people think are knees are actually their ankles. Humans are plantigrades, i.e., they walk on the flats of their feet.
30. Siamese cats get their color points due to a temperature sensitive gene. The colder the body part the darker the fur will become in that area.
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Flamingos can live in lakes that are so toxic that the water would strip away the human skin.
32. The town of Wellsville, New York was named after a man named Gardiner Wells, who was, according to local history, the one person who didn't show up for the meeting when the residents were naming the town.
33. China built a massive solar farm shaped like a giant panda.
34. The 70s progressive rockers Ambrosia took the lyrics from the 1976 track, “Nice, Nice, Very Nice,” from a Kurt Vonnegut novel. When Vonnegut heard the song on the radio, he wrote the band a letter that said, “Music is the only art that’s really worth a damn. I envy you guys.”
35. Rob McElhenney of "It's Always Sunny in Philadelphia" originally wanted the entire cast to get fat for a single season. When nobody else agreed, McElhenney decided to do it on his own - gaining 1/3 of his body weight and then losing it again just for a season.
The quote claiming that Neil Armstrong doesn't exercise because he believes that every human has a finite number of heartbeats is false. Neil did not subscribe to its thesis and only quoted the claim to disagree with it.
37. Popcorn became popular during the Great Depression because it was fairly inexpensive.
38. Chili peppers are spicy as a strategy to ensure that birds (which can't taste capsaicin) will spread their seeds far and wide and mammals will avoid eating them.
39. In the United Kingdom in 2009, the #1 Christmas song was "Killing in the name of" by Rage Against the Machine.
40. In the 1930s laws were proposed in Massachusetts and St. Louis to ban car radios out of fear that they would distract drivers and cause accidents or even lull a driver to sleep.