Why do we blush? We blush in response to emotions such as embarrassment, stress, and shame. Why we blush is a much more difficult question than how we blush, so let’s look at that first. How we blush is fairly straightforward. The red color of a blush is brought about by the dilation of blood […]
#1474 Why do we blush? Read More »
Why do fingers go wrinkly in the bath? Our fingers and toes go wrinkly when we are in the bath because of a nervous system response, not because the skin absorbs water from the bath. If you are in a bath, your fingers and your toes will very quickly become extremely wrinkly. The length of
#1472 Why do fingers go wrinkly in the bath? Read More »
How does photosynthesis work? Photosynthesis works by taking water and carbon dioxide, then using energy from the sun to convert them into glucose through the chlorophyll in its chloroplasts. Without photosynthesis, it is safe to say that there wouldn’t be any life on Earth. Photosynthesis is the primary source of energy among living things on
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What is anaphylactic shock? Anaphylactic shock is when the body has an allergic reaction and there is a sudden drop in blood pressure, and the airway constricts. Unless treated, it can be fatal. Anaphylactic shock is at the very far end of an allergic reaction. The body goes out of control, and the results can
#1455 What is anaphylactic shock? Read More »
Why do locusts swarm? Locusts swarm because they come into contact with other locusts. This seems like a chicken and an egg problem. Locusts swarm because they come into contact with other locusts, and they come into contact with other locusts because they swarm. A locust swarm can be a terrible sight to behold. There
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How is wombat poo cube shaped? They have a very elastic intestinal tract, which shapes their poo into 2 cm cubes. Wombats are four-legged marsupials that are native to Australia. They are low to the ground and weigh about 35 kg, giving them a low center of gravity. A lot of different types of wombats
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Why do crabs use sea anemones as weapons? The crab, known as the pom-pom crab, uses sea anemones to defend against predators and to sting its prey. There are three types of symbiotic relationships in the world. The first is mutualism. In a mutualistic relationship, both parties receive a benefit that they would not be
#1449 Why do crabs use sea anemones as weapons? Read More »
What is Peto’s Paradox? Peto’s Paradox is an observation that the occurrence of cancer in an organism doesn’t increase in line with the number of cells that organism has. Because cancer is caused by mutations in cells, it would be logical that the more cells an organism has, the more occurrences of cancer it will
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How does a hair transplant work? The basic idea is to take hair from the part of your head that still has it (usually the back) and transplant it to the part of your head that no longer has hair (usually the front or the top). Baldness is fairly common, and it is estimated that
#1444 How does a hair transplant work? Read More »
Why don’t giraffes faint? Giraffes don’t faint because they have a very strong heart and a very high blood pressure. If we bend over and then stand up again, we get a head rush. Sometimes it can be so bad that you faint. This is called orthostatic hypotension. Your blood pressure is set at the
#1440 Why don’t giraffes faint? Read More »
