Lord Howe Island stick insects, aka "Tree Lobsters"

[rokeon]

So these are massive, 12 cm long bugs that already look like nightmare fuel even before you watch the video of one hatching and realize that they were actually designed by H. R. Giger. But the deeply awesome part is that they were believed to be extinct for 80 years until a couple of scientists went hunting and found a surviving population of exactly 24 insects living under a single shrub on a neighboring island:

Six-Legged Giant Finds Secret Hideaway, Hides For 80 Years