Numerous studies on crabs and evolutionary findingsopens an indispensable door to thoroughly examine these creatures.

There are many question marks about it to the world of crabs Let’s have a detailed introduction.

The evolutionary process of no living creature has puzzled biologists more than crabs.

With a study they conducted in 2021, researchers sought to unravel in detail the evolutionary history of crabs, and that these creatures are actually evolved at least five times in the past 250 million years. popped up.

In a study published in a journal in 2017, porcelain crabs, king crabs, true infraorder crabs, coconut crabs, and hairy stone crabs were found independently. evolved into different forms.

In fact, the common ancestor of these creatures was a completely different species that did not resemble a crab.

Japanese spider crabs

In 1916, a British biologist credited the tendency for these crab-like but non-crab-like forms to evolve, a word derived from the Greek word “carcinos,” meaning crab. “carcinization (crab)” given his name.

The ancestors of these creatures, which did not resemble crabs, were exposed to the conditions such as temperature, gravity and time that real crabs are exposed to. they were very similar and this is what was called scratching.

In addition, crabs are extraordinary resilient creatures It has been suggested that the physical features associated with this appearance are regularly and over-selected in many species.

In addition to appearance, the neurological structure, circulatory system and many other organs and structures have evolved into completely similar structures.

blue crab

Based on this, there is the formation of some internal organs and structures parallel to the external morphologies. So features like this seen in living things that adapt to similar environments evolution of visceral structures has caused.

In this case, when a living being evolves, evolution of the other is inevitable. We can conclude that. In fact, evolution contains a much more predictable process than previously thought.

For example, king crabs are thought to have evolved directly from hermit crabs.

coconut crab

In fact, such an evolutionary change has not yet been widely accepted among evolutionary biologists, but king crabs are no exception in this sense. is seen as.

This situation clearly shows that the two crab species to the relationship between ancestor and grandchild and the transformation of king crabs into hermit crabs thus explains the reason for the asymmetry found in crabs.

Again, one of the species that underwent carcinization and became a crab, Alllopetrolisthes spinifrons species, not just body shape; it also evolved as a sexual andromorph, with males having shorter abdomens, as in true crabs.

There is one more point that confuses them: any living creature that you think is a crab by being misled by its appearance is not actually a crab.

For example mud crabs and swimming crabs, “real” crabs while it is classified as; Those known as pointed kings or hermit crabs, which attract attention with their spiraling bellies, fall into the category of false crabs.

Are your crabs a real crab or Another creature we think is crab? It’s actually pretty easy to discern where it is.

The most obvious difference between fake and real crabs is how many legs they have. Real crabs have five pairs of skinny legs. The first of these are modified with a pair of grabs and are not used for movement. False crabs also have four legs, but a smaller pair on the back, unlike the others.

In addition to all this, an analysis from Harvard University reveals surprising findings about crabs.

king crab

According to the study, both fake and real crabs; wide, flat and hard shell could have. The curved tails, one of the most striking features of these creatures, can also be found in both species.

Also, Bracken-Grissom argues that having a crab-like shape would provide some kind of evolutionary advantage.

Large Martian crab

The crab shape’s current achievements and findings remain a mystery, but biologists say it does. ability of new species to diversify and colonize new habitats. thinks it will be effective.

Although the world’s crustaceans are thought to have evolved into crabs, a final form has not yet been reached. At this point, we understand that despite many years of work by successful researchers, many things that remain unknown about these creatures there is.

Even the formation of crabs in the next million years, may lose its evolutionary popularity and crustaceans, on the other hand, may deviate from this shape.

The conclusion we have come to is that evolution is not as simple as one might think, and it is still going on. It probably looks like it will continue to evolve and change forever.

king crab

It seems that the crab-like forms of evolution, why it continues to evolve will remain a secret. Undoubtedly, scientists will not stop researching and asking questions. If evolution continues at this point, let’s say it knows something.