In the dark Tasmanian caves, light can be a deadly trap. ➡ Subscribe: http://bit.ly/NatGeoWILDSubscribe About National Geographic Wild: National Geographic Wild is a place for all things animals and for animal-lovers alike. Take a journey through the animal kingdom with us and discover things you never knew before, or rediscover your favorite animals! Get More National Geographic Wild: Official Site: http://bit.ly/NatGeoWILD Facebook: http://bit.ly/NGWFacebook Twitter: http://bit.ly/NGWTwitter Instagram: http://bit.ly/NGWInstagram The Glowworm's Deadly Trick | Mystery of the Giant Cave Spider https://youtu.be/p4YPVJ-t-6Y Nat Geo Wild https://www.youtube.com/user/NatGeoWild