Why are all animals becoming crabs? Well, all animals are not becoming crabs, but crabs have evolved separately five times, so there must be something about the crab form that is very advantageous. We don’t see that many of them, but there are more than 7,000 species of crab. They vary hugely in habitat and […]
#1215 Why are all animals becoming crabs? Read More »
Why can some people tolerate spicy food better than other people? The people who are more able to tolerate spicy food either have fewer taste receptors because of genetics or have desensitized the taste receptors that they do have. We find food that has capsaicin in it spicy. These are foods such as chili peppers
#1212 Why can some people tolerate spicy food better than other people? Read More »
Do fish sleep? All fish sleep, but they have different ways of doing it. Almost all complex organisms, with a few exceptions, need to sleep, although they all have different sleep requirements and methods. Ants microsleep for a few minutes at a time, many times a day, while dolphins put one side of their brain
#1210 Do fish sleep? Read More »
What are predator prey dynamics? Predator prey dynamics refers to the connection between the number of predators and the number of prey. If one number goes up, the other goes up, and then they drop again until the numbers balance. We might imagine that the number of rabbits and the number of foxes are always
#1202 What are predator prey dynamics? Read More »
How do mangrove trees live in saltwater? Mangrove trees are able to live in saltwater because they have a way of removing the salt from the water. Because of this, they are usually found in seawater, or very salty still water. There are a lot of organisms that can survive in salt water and a
#1201 How do mangrove trees live in saltwater? Read More »
What is a lava cricket? Lava crickets are a species of cricket that appear on freshly cooled lava and don’t seem to live anywhere else. Not a lot is known about them. The Latin name for the lava cricket is Caconemobius fori. They are also called lava crickets, dark lava cricket, or ‘ūhini nēnē pele
#1199 What is a lava cricket? Read More »
How is nanotechnology used in medicine? Currently, nanotechnology is used to deliver drugs, improve diagnostics, and help regenerate after illness or surgery. Modern technology is still limited, and the future of nanotechnology could bring an amazing revolution in medicine. Let’s look at what nanotechnology is, how it is currently used, and how it could be
#1193 How is nanotechnology used in medicine? Read More »
What is a mycorrhizal network? A mycorrhizal network is a web of fungal organisms that spread underground and connect trees together. When we think about fungus, mushrooms and toadstools spring to mind, but these are only the fruit of the fungus and are produced so that the fungus can spread its spores. The main part
#1185 What is a mycorrhizal network? Read More »
How does our night vision work? We have night vision because our eyes can use their rods, which are more sensitive to light. Night vision is technically called scotopic vision, which comes from the Greek skotos, which means darkness, and opia, which means sight. Our eyes have two ways of detecting light. We have rods
#1182 How does our night vision work? Read More »
Is there such a thing as true altruism? It depends on how you look at it. You could say no because people benefit through feelings of pleasure, and animals benefit by furthering the gene pool. You could say yes because people and animals make sacrifices that don’t benefit them personally. This is a very difficult
#1178 Is there such a thing as true altruism? Read More »
