Gene editing lab test inadvertently makes horde of rage-fuelled hamsters

Scientists removed key hormone in the hope it would boost animals' cooperation

But it turned them wild, prompting chasing, biting and pinning among hamsters

'We [thought] it would reduce aggression. But the opposite happened': test chief

'We don't understand this system as well as we thought we did', Professor added

Scientists inadvertently bred a horde of unusually aggressive hamsters after a gene editing experiment to 'reduce aggression' went wrong.

Researchers at Georgia State University produced new rodents without hormone vasopressin in an effort to raise 'social communication' between the rodents.