http://species-identification.org/index.php?groep=Sponges&selectie=15&hoofdgroepen_pad=%2C1%2C15

 

http://www.jellywatch.org/blooms/facts

 

http://www.encyclopedia.com/topic/hookworm.aspx

 

http://animals.mom.me/interesting-hookworms-10453.html

 

http://tapewormmartin.weebly.com/fun-facts.html

 

http://www.octopusworlds.com/blue-ringed-octopus/

 

http://www.livescience.com/39919-black-widow-spiders.html

 

http://www.allaboutworms.com/where-do-earthworms-live

 

http://www.arkive.org/hogfish/lachnolaimus-maximus/

 

http://kids.nationalgeographic.com/animals/poison-dart-frog/#poison-dart-frog-orange-blue.jpg

 

http://animals.mom.me/unique-traits-reptiles-3478.html

 

http://birding.about.com/od/Bird-Trivia/a/What-Is-A-Bird.htm

 

http://www.kidport.com/reflib/science/animals/mammals.htm