mutant

The widespread use of broad-spectrum antibiotics - they target many bacteria types but can kill good bacteria, cause side-effects and increase antibiotic resistance - fuels drug resistance by encouraging the emergence of drug resistant bacterial mutants.

Their research was motivated by the question of why mutant variants of bacteria do not proliferate and take over the population once they have developed an antibiotic-resistant advantage.

A teaser trailer has been released for a Scottish horror comedy film about mutant killer midges.

They experimented on a mutant form of the worm that failed to develop some cell types.

The original Stalker: Shadow of Chernobyl, was set on an alternative timeline where a second nuclear disaster had struck, creating an array of mutant creatures and other unnatural phenomena.