Which mammals have no teeth?
- Life Science, Science Fun Facts
- September 21, 2012
If you cut yourself (or spear a fish) underwater, the cut bleeds a bright emerald green. But as you draw closer to the surface, the blood turns brown, then pink, and finally red at the surface. Why does it change colour? In fact, the blood doesn’t change colour at all. What changes is the light
READ MOREIn the sands of tropical reefs lives a tiny little fish called a goby. Gobies would make a tasty snack for passing predators, so to keep from being eaten, they live in holes dug into the bed of the reef. There’s just one problem: gobies can’t dig holes with their tiny fins! Fortunately, there is
READ MOREHave you ever gone to get a piece of bread and found it covered with blue mold? That bread might actually be covered in medicine! When we get sick, it’s because our body has been invaded by tiny living things called microbes. Most of these are harmless, but some can make you very sick. Viruses
READ MOREMost flower stems are smooth and narrow, providing a long, straight path for the leaves and flowers it bears. But sometimes, if you walk through a field of goldenrod, you find something different. Some goldenrod stems have large balls on them, a little like the knob on a sceptre. That knob, or gall, is actually
READ MORENaked mole rats are a truly bizarre animal that seem to break all the rules of what it means to be a mammal. They live in social groups like bees, ants, or termites. They have skin so loose they can turn almost halfway around in it. They are nearly blind and spend their entire lives
READ MOREIn Marvel Comics’ X-Men, the character called Wolverine has sharp claws hidden beneath his skin. When threatened, the claws slice through the skin on his hands and can be used as weapons, and the skin heals when he retracts them again. This seems like pure fantasy, but there is actually a species of newt that
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