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Marine Biology
Scholar (Ages 13-18)
Coral Reefs
Coral reefs support 25% of marine species despite covering less than 1% of the ocean. They are also among the most threatened ecosystems.
15 min
+15 XP
Whales — Ocean Giants
Whales are mammals that returned to the sea. Blue whales are the largest animals ever to live. They rely on song and migration.
15 min
+15 XP