「研究理應是為升華生命，而生命絕不會用悲鳴來表達感激。」
——佚名合著，《學會規章第十七版》
「若智慧生命行於正確之路，為何宇宙文明會停滯不前？」一群學者如是詢問千篇一律的星空。對此詰問，俱樂部的天才置若罔聞，學會的凡夫則茫無所知，而能夠給出解答的，除卻啟蒙他們的「原始博士」外再無他人。
這群狂熱的學者很快站在了文明的對立面，自願成為「返祖實驗」最堅實的擁躉。他們堅信「智識」早已步入歧路，「退行」才是唯一的救贖——正如斷除愚昧的枯枝後，知識的新芽方能從廢墟中參出。他們堅信求識理應百無禁忌，全然不顧這些殘虐的行徑已經逾越科學邊界，一頭扎入了「謬種」的領域，在漫長的實驗裏，研究者與被研究者的界線也逐漸模糊，
宇宙中流傳着一種說法，「原始博士」性情古怪，從不與任何「人類」產生聯繫。可這些追隨者對世界產生的滋擾，又絲毫不亞於偶像本人。直到遊俠舉槍擊穿一座實驗室的鐵門，卻被噴涌而出的香蕉海吞沒——人們終於意識到，過去名為「源究院」的團體已經不復存在，取而代之的，是一片向着「原始」退行的恐怖叢林。
AtaviSearch Forest: Erudition
"Research is supposed to elevate life, but life will never express gratitude with cries of sorrow."
— Anonymous Co-Author, Guild Bylaws, 17th Edition
"If intelligent creatures are advancing on the right path, why do cosmic civilizations come to a standstill?" A group of scholars poses this question to the unchanging stars. In response to this question, the Society's geniuses turn a deaf ear, and the ordinary in the Guild are clueless. Apart from Dr. Primitive, the one who gives them enlightenment, no one can grace them with an answer.
These fervent scholars very quickly find themselves on the opposing side of civilization, voluntarily becoming the staunchest advocates for atavistic experiments. They insist that Erudition had long strayed from the straight and narrow and that regression is the only salvation — Only after severing the withered branches of ignorance can new saplings of knowledge rise from the ruins. They are convinced that any means are necessary in the pursuit of knowledge, recklessly disregarding the fact that these brutal methods have already overstepped the boundaries of science, wholeheartedly throwing themselves into heresies. In the long course of their experimentation, the line between the researcher and the researched also gradually blurs.
There is a tale being told in the universe: Dr. Primitive is an eccentric, never seeking to consort with humanity. But the disturbances wrought in the world by these followers of his were no less significant than their idol. It wasn't until the Rangers shot through a lab's metal door, only to be engulfed by a sea of bananas pouring out, that people finally realized that the organization known as the Source Research Institute had ceased to exist, replaced by a horrific forest that is regressing into the primeval.
