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Resident Evil Wiki
Prime universe
(Capcom's primary storyline)
Further notes

Lurkers (ラーカー rākā?) were a species of frog created in the early years of t-Virus research as part of a study in the effects of mutation on amphibians and their suitability as bio-weapons.[1] Created by Dr. James Marcus, the failures in the Lurker indicated that amphibian-based bio-weapons were impractical with the t-Virus strains available at the time. The only other known prototype amphibian bio-weapons were the Hunter γ over fifteen years later and the Albinoids, both of which suffered the same flaws. Mutants of a similar appearance to the Lurker were later spotted in the sewers during the Raccoon City Destruction Incident.


In his research on Progenitor and the early t-Virus strains, Dr. James Marcus chose frogs to represent the Amphibia class of animal. The infected frogs were largely unbenefited by the viral infection, only increasing in size. It was largely agreed in Umbrella research for years to come that a bio-weapon should have both strength and intellect; as the Lurker's brainpower did not improve beyond that of the frog species it was based on, it was unsuitable for military sales.[2][3] Without intelligence, the increased aggression associated with t-Virus infection would merely make it a danger to potential keepers.



  1. Excerpt from KAITAISHINSHO, p.072: "t-ウイルス研究の初期、投与に最適な生物動を選別する段階で、両生類のサンプルとして選ばれたカエルをベースとした試験的B.O.W.。人間を丸呑みできるだけの巨大な体格と捕食の強靭な舌を獲得している。また明度に左右される視覚は退化し、おそらくはその眼球の存在したスペースまでが中耳となって、獲物の接近を察知する鋭敏な聴覚を発達させているようだ。ウイルスのもたらしたこのような変化は, 単に巨 大化するケースの多い節足類に比べて多少の有用性が認められるものの、いずれにせよ脳が原始的すぎるため制御は不可能で、 近づいたあらゆる物体を見境なく捕食対象とする致命的欠陥により実用化研究は見送られた。のちにヨーロッパ研究所が, 両生類をベースに人間の遺伝子を組み込んだハンターの亜種を誕生させることになるが、 これも視力は完全に失われており、t-ウイルスと無尾両生類の組み合わせには特定の変異パターンか見受けられる。"
  1. 1.0 1.1 1.2 1.3 1.4 Hamamura (ed.), KAITAISHINSHO, p.72
  2. Resident Evil: The Darkside Chronicles (2010) file: "Lurker".
  3. CLUB96 online file: "FILE 07: Lurker".