The main confirmation of the theory of evolution is that it is quite easy to predict how animals and
It has already been proven that organisms with a common ancestorevolve the same way even if they are completely isolated from each other. About 6 thousand years ago, fish inhabited crater lakes: they developed identical morphology in new habitats. One group fished for small shrimp, so it developed a stocky body with a flat mouth. Another group hunted fish in the depths, so they evolved into a more streamlined form. These subspecies are found in every crater lake, although there is no connection between their habitats.
Researcher Emily Yarokhovskaya studies evolution invarious ecosystems using the example of conodonts, organisms that lived in the sea approximately 500–200 million years ago and were among the first vertebrates. Their cone-shaped teeth can still be found as fossils in sedimentary rocks around the world. Scientists estimate that there were about 3 thousand different species of conodonts.
Scientists have suspected for several years that there is a subspecies known as Conodont Sweetognathus that evolved in parallel, says Jarochowska.
Careful analysis of the morphology of dental elementsconfirmed that the subspecies Conodont Sweetognathus repeatedly adapted to different foods due to frequent migration in almost the same way, despite the fact that the habitats of groups of this species were isolated from each other.
Comparing samples of a large number of fossils allowed researchers to confirm that the teeth found in Bolivia and Russia belong to organisms with a common ancestor.
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