This is Mauna Kea, a dormant volcano and Hawaii's tallest mountain.
Incredibly for a tropical island, its peak is covered with snow.
Little can survive at such freezing heights. Bugs blown up here don't stand a chance.
Stunned or trapped in snow, they slowly die.
But not everything succumbs to the cold.

Their cells are filled with a special kind of antifreeze that allows them to live around the snow line.
Originally, wekiu bugs were seed-eating vegetarians, but their descendants have adapted to this hostile environment.
Now with a taste for blood, they are the Pacific's own vampire bugs.
Needle-sharp mouthparts pierce their dead and dying victims before they suck out anything that's left inside.