Coral Reefs - Fauna
National Geographic Kids has some excellent photographs with informative captions at Coral Reefs [http://kids.nationalgeographic.com/kids/photos/coral-reef/], Carribean Reef Sharks [http://kids.nationalgeographic.com/kids/photos/sharks/#/caribbean-reef-shark-kids-1047957_14399_600x450.jpg] and Strange Underwater Creatures at [http://kids.nationalgeographic.com/kids/photos/strange-underwater-creatures/]. There is also an interesting article about how the different coral reef animals work together to keep their environment clean[ http://kids.nationalgeographic.com/kids/stories/animalsnature/crabs-clean-up/]
This interview with marine biologist, Enric Sala, gives you a description of coral and some excellent ideas about what to include in your survival kit. [http://kids.nationalgeographic.com/kids/stories/peopleplaces/interview-with-enric-sala/]
Missouri Botanical Garden has excellent information using simple language at [http://www.mbgnet.net/salt/coral/index.htm]