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Why is this strange, reclusive arachnids fled underground, in the evolution of the waves

Underground schizomid is shown.
The university of Western Australia)

Once upon a time in the West of Australia was covered by forests, and the forests were filled with a blind, the blind, the tip-tap of little creatures called schizomids. However, in the course of the past 66 million years ago, the area that grew a lot warmer and drier, as if the whole of the continent moved north in the direction of the equator. As the forests slowly die, and the living creatures that are in them, in order to find new homes. And so they fled underground, in the many waves of change in order to survive in their changed environment.

That is why the story is told in a new document that is based on a genetic study of these strange arachnids. The insects, very distant cousins of spiders and scorpions can be found all over the world. But it is only in Western Australia’s Pilbara region, she is on the floor. The researchers describe a 56-new types, as a result, an incredibly diverse group for such a small area.

“We think that there are probably many more species out there, because they have such a tiny distro … and we only have to be able to enjoy in a couple of places,” lead researcher Kym Abrams, a biologist at The University of Western Australia, said in a statement. [Goliath Birdeater Images of a Colossal Spider]

Typically, when researchers have to walk about unknown, underground, schizomids, ” she said, and it is for an environmental study of the kind usually carried out prior to major construction projects.

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The diversity of these species, Abrams, and her team wrote in its paper, is likely to be the result of how the split of the species, as the area is dry. Blind, schizomids are blind, so they use their long legs to their surroundings, almost as if it were a person, with the aid of a walking stick. And the individual species all over the world have the tendency to occupy a relatively small area.

However, as Australia is a dried-west, forced them Pilbara creatures from the underground, the arachnids seem to have become even more isolated from each other and are separated by long distances from one warm country to country. And once you are isolated, each with a cluster of schizomids were free to develop according to his / her own path, sort of like if they were both put on a series of islands in the Pacific ocean.

Biologists had long wondered about the team, he or of the Australian underground, schizomids, had all descended from a single species that has travelled to the surface all at once, or any of the creatures dropped down into the dirty depths of the sea. In this study, the researchers wrote, suggests that, although all of the 56 species that behave in a similar way for all but one type of life for their entire lives underground, never emerging to the surface, where their ancestors had lived for it — they are descended from several waves of the underground’s pioneers.

As soon as the underground, the descendants of these pioneers was farther separated from each other, to move separately and in a greater variety of species.

This study has been published online as part of the upcoming October issue of the journal Molecular Phylogenetics and Evolution.

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Originally published on Live Science.

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