The researchers explain that it is in fact his hair that allows him to achieve this feat: hispilar more exactly, also called epidermicle. It corresponds to the outermost part of the , so hair. Its particular shape on Trechalea extensa allows the latter to create a all around its body, which prevents the passage of water. Thanks to this, she can not only breathe, but the diaper also protects it from cold water.
This is not the first time that such a mechanism has been observed in nature. A, observed by the same team of ethologists, was able to stay underwater for 16 minutes to hide from predators. Because, as the study says, “The threat of predation often forces animals to seek refuge in unusual or suboptimal habitats.” Thus, all means are good to escape his assailants.
But the researchers question the use of this process which still has many risks: “Risk of predation, yes, but also risk of the costs they will incur by fleeing. For some species, this means leaving territory or mates unguarded, or perhaps spendingstored in a sprint. In this species, the potential risks related to the use of a refuge may include shortness of breath and loss of bodily. There are many more questions to dig from this first sighting.”concluded Lindsey Swierk, first author of the study.