"Darwin." Unknown species, with uncertainty regarding his nature as a hybrid. Notable sentience despite visibly lacking internal organs. He is required to wear a bodysuit in unsanitized areas, as he is lethally receptive to external pathogens. It also helps maintain his form.

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High resolution details of F598–PNAG interactions unravel the structural basis for antibody-based targeting of multiple microbial pathogens
Explore in 3D at RCSB PDB: https://t.co/luZvYy4x7i
https://t.co/1tvABBHtbp

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