Why do bees buzz? Bees buzz because of the speed with which they beat their wings. All insects with wings make a sound, but some of them are too high pitched for us to be able to hear it. Sound is made by something vibrating and passing that vibration on to the molecules near to […]
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What causes gout? Gout is caused by a buildup of uric acid crystals in joints, which leads to a form of inflammatory arthritis. You have probably heard of gout. King Henry VIII was, amongst other things, famous for suffering from gout. It was often an illness associated with rich and powerful people because the majority
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How does deodorant work? There are three ways that deodorants work. They can cover the smell of sweat with a scent, they can kill the bacteria that make the smell, or they can reduce the amount that a person sweats. When the summer comes around, we all sweat. Some people sweat more than others, and
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How do compound eyes work? Compound eyes work by having a large number of microscopic eyes that each have a lens and see an image, which then gets combined in the brain. Most of the insects that have eyes have compound eyes. The only insects that don’t have compound eyes don’t really have eyes at
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Why do dogs pant? Dogs pant to lose heat because they don’t have as many sweat glands as we do. Many animals have different ways of losing heat. We have evolved to be able to lose a lot of heat through our skin. We have roughly 2 to 4 million sweat glands all over our
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What is a superbug? A superbug are bacteria, viruses, or fungi that have developed resistance to many different types of drugs. We often hear about superbugs on the news. They wreak havoc on places like hospitals. They are very hard to deal with, and the people in the hospital usually have compromised immune systems, which
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How do ants act as a superorganism? Ants are a superorganism because all of the individual ants function together as a single being. They all have different roles and functions, just like the cells in our bodies do. Ants are not the only beings that act as a superorganism. Any species where all of the
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How do bats use echolocation? Echolocation works on the same principle as sonar in a submarine, but bats have special adaptations to be able to use it. The principle behind echolocation and sonar is that you send a sound wave out and then measure how long it takes to come back to you and the
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How do fires regenerate forests? Fires can regenerate a forest because they clear the thick canopy, they release nutrients into the soil, and they can trigger the dispersal of seeds from a lot of trees. As forests grow, they naturally get thicker and taller. Trees need sunlight and leaves to photosynthesize. If a tree cannot
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How does insect repellent work? Insect repellents work by either preventing the insect from detecting the signals given off by people or by using chemicals that insects don’t like. Insect repellents don’t have to repel all insects. They are generally designed to repel those insects that bite us. These are mostly mosquitoes, midges, ticks, and
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