What is a defining feature of the Funnel Spider's web?

The defining feature of the Funnel Spider's web is that it is built in a funnel shape. This unique structure is characteristic of funnel webs, where the spider constructs a retreat that resembles a funnel or tube, typically with a wide-open top that narrows down at the base. The design allows the spider to effectively ambush prey that falls into the web while providing it with a safe space to hide from predators. This architectural style distinguishes funnel webs from other kinds of spider webs that may have different configurations, such as circular or spiral shapes. The funnel shape is crucial for the hunting strategy of these spiders, as it enhances their ability to catch insects and escape when necessary.