Bermuda Triangle Aliens

Within the Bermuda Triangle are a vast number of squid-like robotic creatures. They bring down ships and planes for an unknown reason, although a reference to them keeping all the craft in an underwater "parking garage" implies that they collect the craft, and have been doing so for quite some time judging by the age of some of the vehicles present. After Donovan Grand Smith took their Energy Orb, these aliens attempted to retrieve it. Many of them were wiped out when his grandson Edwin Grand Smith rigged the energy orb to implode, destroying the Underwater Hotel and everything in it. Whether or not the aliens survived is unknown. These aliens appeared in the episode "They Lurk Below".