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

Neptune (ネプチューン nepuchūn?) (development code: "FI-03") was a great-white shark B.O.W. developed by the Umbrella Corporation as bio-weaponry.[2] They were named after the Roman God of the Sea, referencing the reputation of the Great White SharkWP as the "King of the Seas".[3]


The Neptune Project began early on in the Arklay Laboratory's research into animal bioweapons. As their test subjects, they transported several adult great white sharks and infected them with the α strain. The research team was disappointed with the results, with little significant change. Much of the research team moved on to other projects and most of the subjects were disposed of. A female was left for continued research when it was discovered she was pregnant. The staff monitored her carry twelve pups, but ten died soon after hatching. The remaining two survived and were subject to further study into the possibility of creating self-fertilizing B.O.W.s as an alternative to cloning,[4][excerpt 1] but chose against cloning them.[excerpt 2]

Mansion Incident and Raccoon City[]

During the viral outbreak in the Arklay Laboratory, the mother Neptune and her spawn were inadvertently released from their water tanks by a scientist, who had suddenly "gone mad" and destroyed the tanks, badly flooding the entire Aqua Ring.[5] These sharks were later killed when the entire aquatic lab was drained, exposing them to the air. With only minimal enhancements to their bodies, they lacked any mutation sufficient for them to survive.[6]


Umbrella was disappointed with the creation of Neptune. The primitive t-Virus strain used did not significantly improve the already impressive strength of ordinary great whites, and they were still helpless out of the water.[2] Despite these setbacks, however, Umbrella began producing its earlier models on a large scale at its Caucasus Laboratory regardless of quality, and had at least three in captivity at the time it fell to an outbreak in 2003.[7]



  1. Excerpt from Inside of BIO-HAZARD, p.49:
    "ホオジロザメにクレイウィルスα型を使用して開発された初期のBOW。 しかし実験の結果、 クレイウィルスは鮫のような原始的な生物に対しては即効性が薄く、 大した強化も期待できないことが判明したため、 実験体は途中放棄され経過観察用に一匹を除いてすべて処分された。 B.O.W.としてとくに成功したものではないが、 特筆すべきがこのネプチューンより第2世代が産まれたことである。 鮫は卵胎性の生物だ。 ウィルス感染前に実験体は身籠っていたのだろう。 クレイウィルスによって変化した母鮫は数十匹の子を産んだが、 2匹を残し幼体はすべて体の急激な変化に耐えられずに死んだ。 しかし残った2匹には母体と同様にウィルスによる変化が確認されたのだ。 クレイウィルスが母体を通して胎児に与える影響を得られた貴重な例である。 BOW生産はクローニングに頼っているが将来、 自己性殖可能な生物兵器が誕生する可能性もある。"
  2. Excerpt from Inside of BIO-HAZARD, p.49: "ネプチューンは、水中という限定された環境下でのみ行動が可能なB.O.W.である。 強い生命力を持つが汎用性の低さもありクローン生産はされなかった。 ネプチューンの攻撃方法は通常の鮫と同じように獲物を鋭い噛で噛み裂いたり、 水の中に引き込んで溺れさせるなどして弱らせた後、 一気に飲み込むというもの。 成体のネプチューンなら人間サイズの獲物を、 楽に飲み込んでしまえる。 だが、 ラクーン施設で産まれた子鮫たちは、 クレイウィルスに影響されている生物にしては臆病で、 自分より体の大きな相手には攻撃を仕掛けないという傾向がある。"
  1. 1.0 1.1 Takeo (ed.), Inside of BIO-HAZARD, p.48.
  2. 2.0 2.1 Resident Evil: The Umbrella Chronicles (2007), file: "Neptune Notes".
  3. CLUB96, FILE 28: Neptune.
  4. Takeo (ed.), Inside of BIO-HAZARD, p.49.
  5. Resident Evil (2002), file: "Keeper's Diary".
  6. Resident Evil: The Umbrella Chronicles (2007), "Neptune Notes".
  7. Resident Evil: The Umbrella Chronicles (2007), "Umbrella's End"