In Metroid: Other M, lab workers have been spotted on the BOTTLE SHIP, almost all of whom have been killed by the bioweapons being bred there. Samus Aran encounters only two corpses on the BOTTLE SHIP.
One is found in the Main Sector. The lab coat is stained with green blood, however, which implies that he was killed by Ridley in his "little birdie" guise, who left green blood and ragged carcasses after consuming its victims. However, the corpse was not scrapped at all. In addition, a Brug emerged from the body, indicating it had killed the lab worker instead of Little Birdie. Little Birdie's trophy in Super Smash Bros. for Wii U implies that he was the one who killed the lab worker in question by stating that "he has no problem turning his caring owner into a tasty snack!"
Similar corpses were found on Ceres Space Colony, killed by Ridley when he stole the Baby in Super Metroid. In Metroid Fusion, one can also be found in the Main Deck, presumably infected by the X Parasite and reduced to a Zombie researcher. In the same game, a Lab Worker X mimic, the scientist, is a miniboss.