A strange funnel-shaped web appears in the Arizona landscape, looking like something designed to catch more than just insects. The structure is an ambush trap, built to pull prey into a hidden tunnel ...

Healthy spiders never run out of silk. Spider webs are nature’s perfect traps: sticky and delicate, yet strong enough to catch insects many times larger than the spider that built them. Watching flies ...

So I'm thinking we've all seen a spider spinning a web at some point - probably a web that functions as a kind of barrier to ensnare unsuspecting insects. Turns out another kind of spider uses its web ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Spiders spin silken ...