Spider study: Males use their legs to sniff for mates!

Spider study: Males use their legs to sniff for mates!

The animal world often holds fascinating secrets, and the latest discovery about the male cunning spider - also known as Pisaura mirabilis - is turning heads. Researchers at the University of Greifswald have discovered that these small arachnids use an extremely unusual way to find their mates: they sense the scent of potential females with their legs. According to an article by IDW During their investigations, the scientists came across special “smelling hairs” on the legs of the males, which were detected using electron microscopy.

These fine hairs are more than just a curvy surface; they are true masterpieces of chemosensory technology. By perceiving the air waves and scents, the males are able to recognize the smells of their sexual partners. A previous study found that spiders received less research attention compared to insects, making this discovery even more remarkable. Contrary to the general assumption that only insects have such subtle senses, scientists have now proven that spiders also have such a specific ability.

Building blocks of perception

What is interesting is that the list of sense organs of the cunning spider is extensive. The study shows that in males the so-called wall pore sensilla only occur on the legs, while both sexes have tip pore sensilla that support tasting. It is astonishing to learn that 80% of males tested in experiments were able to pick up the scent of their females through a bifurcated glass tube system - clear evidence of the importance of the sense of smell in their lives.

The cunning spider itself belongs to the hunting spider family (Pisauridae) and is widespread in Europe. It impresses with its long legs and slim abdomen, with its color ranging from light brown to black. According to the Wikipedia page on the cunning spider, which also discusses this interesting species, it was even voted spider of the year in 2002. A real insider tip in the animal world!

Lifestyle and reproduction

During the breeding season, which takes place in spring and summer, males present interesting bridal gifts that can be accepted or rejected by the females. Females lay their eggs in a protective cocoon and build a nursery web for the growing spiderlings. The lifespan varies: While males live an average of around 257 days, females reach around 289 days.

The cunning spider prefers to inhabit moist habitats such as wet meadows and forest edges and has proven to be highly adaptable to survive in different environments. A clever hunter, the cunning spider waits patiently in order to jump forward at the right moment and snatch its prey.

This amazing research, published in the journal Communications Biology, not only creates a better understanding of the ecology of this and other spider species, but also sheds new light on the behavior of arthropods in general. The University of Greifswald will certainly have exciting insights to offer in the future as she continues to explore the fairytale world of these animals.