So much has been heard about the Yeti since the life of Homo sapiens began, yet no man has officially confirmed ever seeing one.

Scientists from various countries are joining forces in their search for the Siberian Yeti, the existence of which has yet to be proven, although sightings increased threefold over the past two decades.

Researchers from Russia, U.S., Canada, Sweden, Estonia, Mongolia and China have been invited to look into sets of evidence of the Yeti in the Kemerovo region of Siberia. They are expected to gather at a conference later this week, according to Russian radio station the Voice of Russia.

Scientists estimate that there is a current population of at least several dozen Yeti in Kemerovo and the Altai region, considering reported sightings have tripled since 20 years ago.

Other evidence of the existence of the creatures - such as basic twig huts, twisted branches and footprints of up to 35 centimeters - also has been found in the area, according to NewsCore.

In an organized expedition, a team of scientists from the conference will hike the region's mountains to examine the evidence and hunt down the Yeti.

It will be the first expedition of its kind since 1958, when scientists from the Soviet Academy of Sciences scoured Western Siberia trying to catch a Yeti, NewsCore reports.

"When Homo sapiens started populating the world, it viciously exterminated its closest relative in the hominid family, Homo neanderthalensis. Some of the Neanderthals, however, may have survived to this day in some mountainous wooded habitats that are more or less off limits to their arch foes," Igor Burtsev, who heads the Moscow-based International Center of Hominology.