darwins bark spider

Thanks to its extremely unique silk-spinning mechanism and knowing how to take advantage of air currents, Darwin's bark spider can build a 25m long 'bridge' across the river to

Although small and difficult to detect, Darwin's bark spider can create a net enough to cross a 25m wide river.

Superheroes' nets Spiders can actually block a running train like in a movie if it recreates what's available in nature.