Tarantulas don't spin typical spider webs, but often use their silk to line or protect their burrows. ... They also examined the slides to look for any evidence of silk secretions, Rind said.

Why is my tarantula making webs?

​Hunting Prey

​One key difference between tarantula webs and the webs of other spiders is that tarantulas don't use it to catch prey! The webs of other spiders are placed to catch insects and keep them in place until they're eaten.

Do tarantulas make spider silk?

Summary: Researchers have found for the first time that tarantulas can produce silk from their feet as well as their spinnerets, a discovery with profound implications for why spiders began to spin silk in the first place.