Unlike most water pokemon, Dewpider are unable to breathe oxygen from air, and must rely on a protective bubble to respire on land. A Dewpider's bubble is not the kind blown by children, which pops within seconds if not minutes. It is far more stable than the kind blown by Froakie, built to burst the instant it makes contact with its target. Instead, Dewpider's bubbles are permanent, for they need them both to breathe and to protect their vulnerable, insectoid heads from predators. But they bought them at a heavy price, for although their thin legs suggest a pokemon built for speed and the closely related Surskit relies on its quickness, prolonged exposure to bubbles has left Dewpider even slower than Slowbro.

Even Dewpider's bubbles are not resilient enough to fossilize, and typically pop on the pokemon's death, but their origins can be traced in the fossil record by the development of gills. Evidently, Dewpider's ancestors were land-based pokemon from Ula'ula Island who relied on mobility to escape predators, but lacked the speed to survive the arrival of the Baile Style Oricorio. The first Dewpider must have seemed like an odd creature, a disabled pokemon so fragile it could not breathe outside a bubble and moved too slowly to keep up with its swarm – but it survived to become the first Araquanid, and its Surskit-like ancestors were eaten.

Trainers today often consider Dewpider a difficult species to use - hard to feed, slow to respond to orders, and always making the second move; many an unfortunate child has lost their Dewpider's life to an equally inexperienced foe whose pokemon attacked with needles. But many train them anyway, for their resilience at an early age is hard to overlook – and children, especially, love the idea of a bubble that never pops!