nobody, as you have not seen. Koist d predators you have to get outside and escape from behind

In an Asian beetle, a Japanese scientist discovered an unusual trick that allows him to avoid death in the graves of amphibians. After the sern quickly passes through the tract and then forced the predator to curse. He carefully published the current magazine Current Biology and yes, there is a video.

As in the biblical story about Jon and the whale, one kind of aquatic insect from the water-loving family (Attenuated regimbartia), which the scientists chose for their experiments. In the Bible, someone who opened the whale Jone, these insects were described by experts, his journey through a difficult tract.

The research, which took place at a university in Kbe, Japan, focused on no one’s breeding prey, on a small black-spotted jumper (Pelophylax nigromaculatus). Most similar studies have looked at how insects and food fed these amphibians to avoid contact with their predators, but in this case it was different.

The researchers came to the discovery by examining the insect’s defenses against abms, which were provided with various insect species. Attenuated regimbartia young and adult jumpers.

This was the first time that this method of prey was described and described. And so, while Jon prayed in the whales for several days, the beetle sought an active way out. It was not possible before, so he had to set off on a journey by alud and steva.

Vlevo naho

At the top left of figure (a) is a beetle of the species Regimbartia attenuata from the eledi vodomilovitch (Hydrophilidae). At the top right (Figure b) is a black-spotted jumper. Then, in the sequence snmk (c), you see one aspect of the interaction of these two species: the same beetle as, after passing through the training tract of a jumper, leaking out.

The fastest swallowed beetle took six minutes to pass through the entire tract. However, this was the exception, most of the 15 beetles in the experiment came out of the jumper after one and six hours from the position. (One Attenuated regimbartia he did not drink at all and died dead.) Although the adult beetles are easily eaten, in the case of swallowed beetles, ninety percent of the swallowing beetles were eliminated within 6 hours (0.16.0 hours), the scientists describe in the study.

Prv dlka pobytu v jcnu, aludku, tenkm a poslze tlustm stev predtora je pro peit koisti dleit. m times the age uvnit zstv, tm vt is ance on peit. Navc does not passively touch the third tract, but must actively find his way out on his own.

The scientists also experimentally verified this fact when they poured nooks into the wax of our insects so that they could not bind them. In this case, he failed to escape and the jumper used it as his food. It lasted from 38 to 150 hours.


Probably a path of a beetle of the species Regimbartia attenuata through the amphibian. In the picture, the trno trak of the black-spotted jumper was used for illustration. At the end of the journey, the beetle especially stimulates the sphincter and produces a reflex, which causes the sprain to relax, ie defecation.

It is clear that in this way the insect can escape only from the body of a predator, which does not eat its food, but completely eats it, and thus leave it for a certain period of time in its burial.

For the beetle itself, the path of this beetle through the body will not be without consequences. would not usually empty soon after eating. According to scientists, this insect promotes excretion to make it easier to eat. This is because svra is not a free passer. The researchers tested whether the beetle could induce excretion in other species of ab, which was confirmed.

This discovery is not the only one that describes no one’s breeding prey, including some that can be moved without movement and passively eliminated with faeces. Another strategy is the last resort in that it eliminates toxic substances in the predator’s body, which forces him to uproot it. Anyway, it is necessary to repeat that this work describes for the first time an active breeding animal, which is trying to go through the whole system.

If you want to try a similar experiment yourself, you will have to go to Asia, where this type of insect is abundant in flat fields.

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