Drees, B.M., and John Jackman. “Tarantula.” Agrilife Extension: Texas A&M System. http://texasinsects.tamu.edu/cimg366.html.
“Giant Huntsman Spider.” Wikipedia. http://en.wikipedia.org/wiki/Giant_huntsman_spider.
“Goliath Bird Eating Spider.” Blueplanetbiomes.com. http://www.blueplanetbiomes.org/goliath_bird_eating_spider.htm.
Kaufman, Rachel. “Tarantulas Shoot Silk From Feet, Spider Man Style.” National Geographic, May 16, 2011. http://news.nationalgeographic.com/news/2011/05/
110516-spiders-tarantulas-webs-spider-man-science-animals/.
Leader, Maximum. “Playing With Toads.” dangerous-daring-blog. July 31, 2007.
http://dangerous-daring-blog.blogspot.com/2007/08/playing-with-toads.html.
Smithsonian Institute. “Invertebrates.” Smithsonian National Zoological Park. http://nationalzoo.si.edu/animals/invertebrates/facts/factsheets/goliathbirdeatingtarantula.cfm.
“Spiders/Scorpions: Deadly Mates: Black Widow Spiders.” National Geographic, August 2, 2010. http://video.nationalgeographic.com/video/animals/bugs-animals/spiders-and-scorpions/
black-widow-spider-predation/.