How do mountain goats climb cliffs? Through a combination of their hooves, muscles, and lack of fear. Mountain goats can often be seen climbing cliff faces and even dams. There are two main reasons why they climb. The first is for food. They eat plants, grasses, and alpine vegetation, but they also lick the rocks […]
#518 How do mountain goats climb cliffs? Read More »
Why can you test for drugs in urine? Because the liver breaks them down and then the kidneys remove drugs from the body by expelling them in the urine. There are two things we need to look at here: how are drugs metabolized by the body and what do drug tests test for? How are
#515 Why can you test for drugs in urine? Read More »
Why can camels go so long without water? They can survive for 15 days without water because they have several adaptations. Camels are renowned for their ability to go long periods of time without drinking any water, which is one reason why they are so well suited to desert life. We can only survive for
#514 Why can camels go so long without water? Read More »
What causes a bunged-up nose and a runny nose? A bunged-up nose is caused by inflamed nasal tissue and a runny nose is caused by too much nasal fluid. What is the nose for? Most animals have one and they do pretty much the same function for all animals that have a nose. The nose
#507 What causes a bunged-up nose and a runny nose? Read More »
How is blood pressure measured? There are two measurements for blood pressure. The first number is the pressure of the blood when it is being pumped by the heart, called the systolic pressure. The second number is the pressure of the blood between heartbeats, called the diastolic pressure. The amount of blood we have in
#506 How is blood pressure measured? Read More »
What causes rigor mortis? Rigor mortis is caused by the muscles in the body being unable to contract. Rigor mortis is Latin. Rigor means “stiff” and mortis means “death”. It happens because of the way that we extend and contract our muscles. If you want to reach out and pick up a cup of coffee,
#504 What cause rigor mortis? Read More »
Why does the body produce fat? The body produces fat to store and release energy, for insulation, and to regulate body health. Most of us have tried to lose weight, are trying to lose weight, or will try to lose weight at some point. What we mean by that is lose fat. However, we need
#502 Why does the body produce fat? Read More »
Can you eat the skin of all fruit and vegetables? Some fruits have a poisonous skin that it is better to avoid. The skin of some vegetables is too difficult to chew. What is a fruit? A fruit is a mature, ripened ovary, and the contents of the ovary. The ovary is the female part
#498 Can you eat the skin of all fruit and vegetables? Read More »
Why did early humans leave Africa? They were probably forced out by climate change, but they could have left because of their rising intelligence. Let’s look at the evidence for why paleontologists believe humans developed in Africa and then look at why they left. Humans probably separated from the common ancestor we share with other
#492 Why did early humans leave Africa? Read More »
Do any other animals cry? Yes, but only to lubricate their eyes. We have three types of tears. We have tears that lubricate and clean our eyes. These are called basal tears and they are created automatically. Every time you blink, the basal tears are spread across the eye and keep it wet and clear
#491 Do any other animals cry? Read More »
