Unlike most invertebrates, the giant cave cockroach has a lifespan of two years. This is due to the insect’s amazing immunity, one that can fight off fungal infections by producing antibodies time and time again. This 8 cm long and 2-and-a-half cm wide creature prefers to live in colonies of about 200—and don’t worry, they’re not interested in invading your home like other cockroaches, they reside in tropical forests of Central and South America.