Dracano

: They lack heat signatures, making them impossible to track with standard heat-seeking missiles.

: As more volcanoes begin to erupt worldwide, Lowell must clear his name and work with the military to stop a chain reaction of eruptions that would lead to a total "Dragon Apocalypse". Dracano

: Lowell discovers that the eruption was actually caused by the release of "petrified magma cocoons" containing dragons that live in the Earth's interior and mature upon reaching the surface. : They lack heat signatures, making them impossible

: The dragons are wyvern-type creatures that are only vulnerable to bullets for a few seconds after emerging from their cocoons. Once their scales harden, they become virtually bulletproof and invisible to radar. : They lack heat signatures