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Monday, November 20, 2017

Biologists understood the tenacity of ticks

Scientists have studied the structure of the limbs of the dog tick (Ixodes ricinus). It turned out that the ability to hold a variety of surface mites provides a special structure of spider legs. A study published in The Journal of Experimental Biology.

Ticks spend more than 90% of their lives among the fallen leaves. Traveling to different parts of the plant, they can travel considerable distances before they are able to be on the animal. Then they move through the body, clinging to the skin, wool or hair in search of a suitable place to attach.

First walking leg mites have carefully studied Herman Burmeister 160 years ago. In the new study, researchers re-examined the mechanisms of adhesion of these arachnids with the surface. “The fact that not only the pads between the claws and the claws themselves contain a transparent elastic protein resilin, surprising, because this protein had never met before in the claws of arthropods,” explains co-author with Dagmar, Voigt.

It earpads provide attachment to smooth surfaces such as human skin or glass. Depending on the situation and necessary efforts, the pads can take a different shape like the bellows of an accordion. For example, on glass, females can develop stress, in 500 times exceeding their own weight. While in the foliage or move on dirty surfaces, ticks frequently bent legs and lean not on their ends and on the joints.

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