Argyroneta aquatica is the only spider species that has the ability to live longer in water than out of it. How did you get this?

This is how the water spider, the only known species that spends more time submerged than on the surface, hunts.
Argyroneta aquatica is the only spider that spends more time in water than out of it. Image: Flickr

The world of arachnids is one of the most interesting from an evolutionary point of view. We can find in nature all kinds of animals belonging to this family. From completely poisonous options to others with differential capabilities. The best example of this is the spider with the ability to regenerate its own limbs. Today we want to talk to you about the water spider, a species that has a series of options that make her an expert underwater hunter. In fact, they live longer in the water than they do out of it.

Interestingly, it does not have a mechanism similar to that of any fish. On the contrary, from time to time it has to rise to the surface of the water in order to breathe and get as much oxygen as possible. Once this innate function is accomplished, it descends again to continue feeding, reproducing, or hunting. It spends most of its life a few centimeters below the surface, which allows it to obtain a greater amount of food. your ecosystem avoid, in the same way, being the dish of other animals bigger.

So let’s see what are the most important features the only aquatic spider listed as such, why it managed to achieve these advantages at an evolutionary level and, of course, the extent to which we are facing one of the most surprising arachnids that can be seen in nature. Native to Europe and Asia, this trait is what has allowed it to survive generation after generation.

Water spider, a different and unique species of arachnid in the world

Surely you’ve already asked yourself this question. Can spiders swim? The truth is that there are some species that can float in water. Through the movements of the legs they can be moved, but this goes a little further. However, what you may not know is that there is a variant capable of diving. The water spider, known in scientific terms as Argyroneta aquatica, has a curious difference. It submerges without any problem a few centimeters in streams and lakesbeing able to remain long periods in that ecosystem.

In fact, he only visits the surface of the water to breathe. Perhaps, in a few thousand years, evolution has endowed this animal with the ability to have avoid going to the surface to breathe oxygen. The vast majority of these animals’ daily activities are carried out underwater, which includes hunting, breeding, laying eggs and caring for their young. It is, without a doubt, a differential proposal.

Regarding their own configuration, males have a size that exceeds 30% of the size of females, measuring from 10 to 15 mm. The diet of these animals is very varied, as they can eat all kinds of insects that are present in the water, as well as small larvae of mosquitoes and crustaceans. These are undoubtedly food sources that are not lacking in this ecosystem. Moreover, they have the other characteristics that represent the arachnids in question.