Why can fish swim so fast? They move their bodies from side to side in such a way that they produce a backwards moving wave in their bodies, which pushes against the water, producing thrust. Also, they are very streamlined. First, we should clear up the fact that all fish are fast. There are some […]
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Why are bees transported across countries by truck? Bees are the largest pollinator of many of the foods we eat and they have to be transported to where the foods are grown. Bees are the most common pollinator but not by any means the only. Bees travel from their hive to find flowers. When they
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What animals and insects are pollinators? A large variety of animals and insects are pollinators. Many of us might think that flowers are only really pollinated by bees and butterflies when, in actual fact, there are a huge number of insects, reptiles, and mammals that are responsible for pollination. What is pollination? A plant has
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Why do tattoos stay in the skin forever? Because the particles of ink are too big for the body to absorb and expel. When you have a tattoo, the tattooist uses a needle to put ink particles into your skin. Skin has three layers, and the ink is injected into the middle layer, the dermis.
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What are moles, freckles, and birthmarks? Moles are caused when pigment-producing cells grow in a group. Freckles are caused when your skin cells produce too much melanin. Birthmarks are caused when blood vessels don’t form correctly or when the cells that produce pigment grow too much. Almost everybody has moles. By moles, I obviously don’t
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Why did some dinosaurs have such long necks? To reach the higher up vegetation, to get more low-lying vegetation, to expend less energy, and to lose heat. There are several different types of dinosaurs that evolved long necks. The most famous that we probably all know is the diplodocus. The diplodocus was undoubtedly large. It
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Are ants smart? They are not smart in the way that we are, but they have been observed using tools and performing tasks that would show they have some intelligence. The size of an animal’s brain is not necessarily an indicator of how smart it is. If we just look at the largest brain, it
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Why do people pass out from pain? Sudden pain can make the heart rate decrease, which lowers blood pressure, which can cause people to pass out. Fainting is technically known as syncope. Syncope can also mean when a word is contracted by not pronouncing the middle letters, such as favorite (we don’t say the o),
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What is the difference between slugs and snails? There are several differences but a big one is that snails have a coiled shell on their backs and slugs have a soft shell underneath their flesh. Snails and slugs have a lot more similarities than they have differences. Let’s look at the similarities first. Both snails
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What causes a stroke? There are different types of strokes, but the most common is an ischemic stroke and it is caused by a blockage in one of the blood vessels in the brain. The brain has a huge oxygen requirement. It is only 2% of your bodyweight, but it uses 15 to 20% of
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