Young lava fleas are only a meter tall at first, but by feeding on soft rocks, they are able to metabolize nutrients directly from the cooling lava through an armored feeding tube.

• 年幼的熔岩蚤一开始只有一公尺高，以较软的岩石为食，牠们可以藉著一支有甲壳的进食管直接由冷却的熔岩代谢养分；