And it is not just the body that can survive decapitation;the lonely head can keep on functioning, too, waving its antennae back and forth for several hours until it runs out of steam, Kunkel says.

• 康凯尔说，蟑螂不只是身体活得下来，被切下的头部功能也还在，触角会继续来回摆动数小时，直到没力为止。