This was both humanity's biggest mistake and the first true Christmas miracle. Back in Area 51, the egg hatched to reveal a spidery-looking creature whose head can swivel 720 degrees in any direction and with two venom-filled fangs which can separate to become beaks, leading the workers there to dub it "the spider owl". After trashing the facility, it crawled out and fled across the desert, and hasn't been captured since. The destruction it caused to the facility ruined many of the alien experiments the government was conducting at the time, forcing them to turn their attention to stealth aircraft instead (partly to try and capture the spider owl).