Read Works
Read Works: Dive Into a Coral Reef!
[Free Registration/Login Required] An informational text about some of the animals that live in a coral reef. A question sheet is available to help students build skills in reading comprehension.
Tree of Life Project
Tree of Life: Sirenia (Dugongs, Sea Cows, and Manatees)
This site takes a very brief look at the family Sirenia. Content includes numerous references.