Lord Howe Island Stick Insect hatching at Melbourne Zoo. The Lord Howe Island Stick Insect, Dryococelus australis, was driven to the brink of extinction by Black Rats in the early twentieth century. However, in 2001 it was rediscovered on Balls Pyramid, a rat-free volcanic outcrop 23 km off the coast of Lord Howe Island, which is located off Australia's east coast.
Giant walking stick, Dryococelus australis. Thought to be extinct for 80 years, two Australian scientists (David Priddel and Nicholas Carlile) have rediscovered it on Ball's Pyramid, a volcano in New South Wales, Australia
Lord Howe Island Stick Insect, also called a "tree lobster" : Howe Island walking sticks seem to pair off — an unusual insect behavior — and Jane Goodall remarked of "how they sleep at night, in pairs, the male with three of his legs protectively over the female beside him."
it was that scientists assumed the stick insects would never be seen again. Then, however, a group of climbers stumbled upon the remains of a Dryococelus australis on Ball’s Pyramid. Moreover, this was some 44 years after the last known sighting of the insect, dead or alive.