A clade is a group of organisms that have a shared ancestor. It’s one of the most common ways to group organisms based on shared ancestry, and that’s what I’m going to show you in this video.
Why two organisms are in the same clade is a question that has perplexed biologists for years. Most clades have more than two, and many have as many as ten. It’s very hard to imagine why two organisms would be in the same clade, but there is one reason that is fairly well accepted. They are related.
The reason is that a clade is a group of organisms that share a common ancestor. The common ancestor of two clades is the common ancestor of the clades. We can’t tell much about the common ancestor of two organisms without knowing more about the common ancestor of the organisms.
The only way to figure out the relationship of two organisms is to get the common ancestor of those two organisms. This is a fairly laborious process, because you need to be able to read the DNA of the organisms (a process called “coding”), and you need to know what the common ancestor is. The common ancestor of two clades could be something like the common ancestor of two different species. But you still need to know what the common ancestor is.
You can use a DNA phylogenetic tree to look at two organisms as a proxy for how the relationship between them works between them, because it is a way to make conclusions about the common ancestor of two organisms. So if two organisms are in the same clade, you can predict that they are related. For example, if humans and chimps are both in the same clade, you can deduce that humans are related to chimps.
This is also a basic strategy for detecting relationships or similarities between people. If two people have the same last name, for example, you can use their DNA or a DNA database to predict that they are related. You can also use a DNA database to look for the same last name in different kinds of people, such as criminals and school students. When it comes to the relationship between species, you can use a DNA phylogenetic tree to show that human and chimpanzee relatives share common ancestry, too.
In the past, you could see the relationship between two organisms by using the so-called “tree of life”, a phylogenetic diagram that displays the relationships between organisms and the different states they have in which they are alive. You can also plot DNA sequences across species to see where species split off from one another. Some computer scientists use these diagrams to help them look at how species are related, and how they are evolving over time.
In the case of two organisms, it can be very useful to know which pair of genes they share. For example, if we know that two of our species share a particular gene, we can infer that they are likely related. The same is true of some other genes, like those involved in the immune system. By knowing which genes a particular organism has in common with another, we can infer what the two species may have in common.
That may be true for some more complicated cases like humans, but for most organisms, we don’t have the kind of data that we’d need to make any such predictions. That is, it is unlikely that we would even know what some of our favorite foods are, let alone know anything about our favorite animals. In fact, as I mentioned above, we can’t even make inferences about evolution in general, let alone about the evolution of our favorite animals.
Evolution is a theory based on common descent that attempts to explain what has happened in the world. There are many ways to go about that, but one of the major ways is based on the idea that organisms come in two kinds. One is called the “dominant” or “ancestral,” and if it is a species that has been around for a long time, it is assumed that its relationships are a good fit.