Ostriches Don't Hide Their Heads in the Sand
Ostriches do not put their heads in the sand when they're threatened. In fact, they don't bury their heads at any point whatsoever. When threatened, ostriches tend to flop over and play dead.
Mount Everest is Not the Tallest Mountain on Earth
Technically, Mount Everest is the tallest mountain above sea level. However, the tallest mountain on earth is the Mauna Kea peak in Hawaii. In fact, the total height of Mauna Kea is nearly a mile taller than Mount Everest.