Watch a sand bubbler crab meticulously build its little bubble house

Nerdist has compiled a bunch of videos of sand bubbler crabs building their little alien dome houses, and wow is it fascinating to watch. These little crustaceans use their legs for breathing, and use these meticulously-crafted sand bubbles to capture air and protect them from the tides. Pretty neat!

See Sand Bubbler Crabs Build Perfect Dome Homes [Matthew Hart / Nerdist]