Surely one other escapee was the mosquito.
Mosquitoes are responsible each year for more than a million human deaths in tropical regions.
To make matters worse, mosquitoes are gradually evolving a resistance to pesticides. Thus a new sense of urgency surrounds the need to combat the spread of malaria. On the scientific horizon are plans to create genetically altered mosquitoes that eliminate the microscopic parasites that cause malaria. The life cycle of the malaria parasite in mosquitoes and humans is well known. Female mosquitoes require blood for egg development.