incredibly rare insects. esai thinks that their blood contains glycerol, a natural antifreeze. but the big question is what do they eat? he believes they feed on tiny algae that live in the ice. and when times are hard, each other. but as the world warms, time is running out for the ice dragon. >> there is very little information about this species, but it is endangered because we already know that their habitat, it's melting away at an incredibly fast pace. >> whatever happens to the glacier, esai wants to make sure that the ice dragon has a future. so he is collecting some for his captive breeding program. >> protecting any species is valuable. but protecting a species that