When did the first trees appear? The first trees appeared about 350 million years ago and they evolved from seedless plants. There had to be plants before there could be trees and the first plants evolved about 400 million years ago. The first plants evolved from a type of freshwater green algae, but there were […]
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Why do birds eat rocks? Birds eat rocks to grind up their food so that they can digest it more easily. Most birds swallow rocks, and the size of rocks they eat depends on the size of the birds. A small bird like a swallow will have tiny pieces of grit, and a large bird
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Why can young people learn more easily that old people? Young people can learn more easily than old people because they have greater neuroplasticity. Neuroplasticity is the brains ability to increase, change, and reorder connections. When we learn something new, our brain has to store the information somewhere. I thought that when we learned something
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Why are some people albino? Some people are albino because they don’t produce melanin, which colors our bodies. However, any living thing that has color can be albino. The condition is called albinism. Anything that has a color pigment can be albino if that pigment isn’t produced. You can get albino fish, insects, birds, mammals,
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Is gut feeling real? Yes, gut feeling is real. It can be a case of your gut reflecting what your brain is subconsciously thinking, and it can be a way that your gut biome affects your brain. Our gut microbiome is a living mass of organisms that we couldn’t live without. It is estimated that
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What are curds and whey? The curds are the coagulated proteins from milk and the whey is the left over liquid. Cheese is a diary product made by coagulating casein, which is the milk protein. Making milk into cheese is a good way of making it last much longer because cheese doesn’t spoil as fast
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How do cities affect animal evolution? Animals have to evolve to survive in cities in numerous ways. They have to cope with the heat, the buildings, vehicles, different food sources, and many other things as well. In the history of our planet, urbanization is a relatively recent concept. The first cities appear to have sprung
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Why is there no cure for the common cold? There is no cure for the common cold because it is a virus and because there are so many different forms of it. The common cold is called the common cold because it is the most common of all the illnesses humans get. There is obviously
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What are self-healing materials? Self-healing materials are materials that can detect when they have been broken and then repair themselves without any human intervention. In essence, our skin and bones are self-healing materials because they know when they have been damaged and can repair themselves when cut without needing any external support. The majority of
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Why do some dragonflies migrate so far? Some species of dragonfly migrate a long way because of temperature and other triggers. How they do it is probably more interesting than why they do it. There are two species of dragonfly that we are going to look at today. The first species is called the Green
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