The Coral Bleaching: Making our Oceans Whiter lesson was developed by National Geographic. This lesson plan deals with coral reefs and the recent increase in coral bleaching. The students will be learning about the...

This in depth site covers Cnidarian life history, ecology, morphology, systematics, and fossil record. Organisms described include corals, anemones, sea pens, box jellies, siphonophores, hydroids, fire corals, medusae,...