Giraffe's have the highest normal blood pressure of any living thing - it can reach 300/180. Blood has to go 12-18 feet up to the brain. And their veins & arteries are built heavy-duty to withstand it. Opossums are the only mammals that are immune to Rabies. Scientists think it has something to do with their low body temperature. They are also immune to snake venom. And they have to eat constantly because they can't store any body fat. Their life span is only 2-3 years.
McDonald’s Is the World’s Largest Toy Distributor Since the creation of the Happy Meal in 1979, McDonald’s has leapfrogged industry giants such as Hasbro and Mattel to become the world’s largest toy distributor. All told, McDonald’s distributes 1.5 billion toys worldwide each year.
A fascinating frog that freezes to death for 8 months & comes back to life: https://www.nps.gov/gaar/learn/natu...ire winter, the,thaws from the inside outward. Wood frogs have evolved ways to freeze solid for up to eight months each year. They’ve accomplished what would seem to be a biological miracle. How do they pull this off? At the beginning of winter, ice quickly fills the wood frog’s abdominal cavity and encases the internal organs. Ice crystals form between layers of skin and muscle. The eyes turn white because the lens freezes. At the same time, the wood frog’s liver produces large amounts of glucose that flushes into every cell in its body. This syrupy sugar solution prevents the cells from freezing and binds the water molecules inside the cells to prevent dehydration. So on the one hand, the wood frog’s body allows ice to form around the outsides of cells and organs; and on the other hand, it prevents ice from forming inside the cells--thus avoiding the lethal damage suffered by most animals when they freeze. What does a hibernating wood frog look like? There is no muscle movement. No heartbeat. No breathing. For the entire winter, the wood frog is like a lump of hard, frigid, icy stone carved in the shape of a frog. But it’s alive, in a state of suspended animation. In spring, the wood frog thaws from the inside outward. First the heart starts beating. Then the brain activates. Finally, the legs move. Nobody yet understands what starts the wood frog’s heart after being frozen and inert for the entire northern winter. Once the frog is fully thawed, it heads off through the woods to find a breeding pond or other suitable water. The wood frog is completely undamaged by conditions that would be fatal to nearly all other animals.