Spiders: They Also Live Underwater.

In still fresh waters all over the country, there's an abundance of life. Many animals come to make this their home. But there's one thing down here that might at first seem a bit out of place. Argyoneta aquatica, the diving bell spider. They carry an air supply on their abdomen as they prowl this underwater realm looking for prey. They're effective hunters and will eat anything that they can overpower. But like us, they cannot eat when they're surrounded by water. But they don't return to the surface. Instead, they build a nest. Like all spiders, they use silk, which works just as well underwater. The nest is not yet complete. They need one more thing.