Fox seems to have fallen prey to the elusive space plasma spider xD

The slime from the spiders web gorges it's inhabitants, and makes them unable to struggle, and relocates a majority of the nutrients to the abdomen of the prey to aid in feeding. The spider then reuses this slime after it has been cleansed by its body to rebuild weak spots on its web.

Haha, I have no clue where I'm going with this, i just made it up on the spot xD

Make your own description of what's happening if you want :D