Movement In Cockroach
A cockroach’s body is covered with a hard outer skeleton. Cockroaches have a pair of antennae that help them smell things. They also have a pair of cerci that can detect the slightest of movements and warn them of any danger from behind.
Though cockroaches have two pairs of wings, they can only fly short distances. However, they are able to run and climb very fast. Like all insects, cockroaches have three pairs of legs. They walk in a very interesting manner, moving three legs at a time. Let us suppose the dots represent the legs.
(a) The red dots (legs) move forward while the blue dots (legs) remain on the ground.
(b) Then, the blue dots (legs) move forward and the red dots (legs) remain on the ground. This movement is repeated.