Endland - Your Day Will Come
Trapdoor spiders dig burrows or use already existing tunnel as their lair. They camouflage the entrance and wait behind a trapdoor for prey to come too close. Their jaws are strong enough to break bones and they seem to crush their prey after wrapping it in a silken cocoon.
The trapdoor spider observed at the radio tower was the size of a medium-sized dog, coming up to the knee of a grown Humanes. It seemed to have created a system of tunnels in the walls of the tower or maybe the tunnel were already there. It is unknown where it came from or why it chose the tower. The corpse of the spider was bought by Retro for further study.