#macroevolution

Enrich your knowledge further by exploring a more holistic insight of the genetic intricacies within cetacean families and discover new clarifications of the contentious relationships among particular species.

There is only evolution.

If you have a number with, let's say a billion digits, and every generation you either raised or lowered one digit by one. After the first few generations, you get something that's basically identical, but after billions of generations, it will look completely different. Now let's apply this to many different instances of the same number, and say that if 50%+1 of the digits in two of these instances are identical, then they can produce fertile offspring. There will come a point where different populations of these instances will be unable to form viable offspring, only in their own communities, and none of them would be able to form viable offspring with the original population. When this occurs amongst organisms, it is known as speciation.

It's clearly complete hogwash, but it could work for fantasy worldbuilding if you like stuffing evolution into fantasy worlds. You get hybrid creatures as part of the theory, and you could probably come up with some interesting creature ideas based on the dinosaur nonsense. Anyways, thanks for reading this

Abstract A negative answer to the question about the reducibility of genetic processes at the level of macroevolutionary events to microevolutionary ones has been obtained by analyzing the evolutionary transition-transversion bias and estimating the rates of molecular transformations in a number of vertebrates by the example of the CYTB gene. As a result, it has been established that, at a divergence at a level below families, the frequency of transitions sustains “a jump,” due to which the rate of molecular evolutions increases by an order of magnitude, whereas there occurs a slight predominance of transversion frequencies with a synchronous linear increase in the frequency of different nucleotide substitutions at the levels of orders and higher. An obvious reason for distinctions between the genetic processes of micro- and macroevolution is the leading role of spontaneous mutations in the formation of species. Their canalization results in stable morphological distinctions formed during postnatal ontogenesis. At the same time, the stages of macroevolution are associated with the transformation of organogenesis to be fixed with by changes in the sets of genes governing the nature of gene regulation and the interaction of genes in development.