Beetle can "dress" as a spider

Deep inside caves in Montenegro, Serbia, and Croatia, the walls are crawling with longlegged creatures that look exactly like spiders.

However, DNA analyses have surprisingly revealed that the spiders are beetles that have adapted to life in a place that never sees the light of day. The beetles have no eyes, no colour, and no wings, but their extremely long legs – like those of spiders – and antennas enable them to feel their way forward and so compensate for the lack of vision. Scientists have discovered four species of the long-legged cave beetles, which have been named Graciliella. The beetles are the descendants of ordinary beetles that lived on the ground and had short legs.

The beetle looks like a spider with its long legs. But it is revealed to have six, not eight legs.