Roxy nodded. "All very possible. Cause the right mutations, insert a few variables, and hell, you could give a human gills. Takes a few shots to make sure they dun suffocate. But stuff like that leaves evidence. Surgery has scars, or signs of something artificial. Genetic alteration leaves marks in the DNA." Sue may have some experience with genetics.

Like maybe mutating one cat's genes to be a breedable species.

"But that's not mine. It's all norm human genes, but been mixed in a weird way. Willing to bet whatever system you guys have won't have the same markers as ectobiology."