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Which coral reef system off the coast of Brazil is the largest in the South Atlantic and home to unique species?
Answer
Abrolhos Reef
Which cave in Vietnam is the largest known cave by volume and contains its own jungle ecosystem?
Answer
Son Doong Cave
Which estuary in California is the largest in the state and a key habitat for salmon?
Answer
San Francisco Bay
Which African lake is the second deepest in the world and famous for its endemic cichlid species?
Answer
Lake Tanganyika
Which Russian lake is the largest freshwater lake by volume and home to the Baikal seal?
Answer
Lake Baikal
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Which estuary in California is the largest in the state and a key habitat for salmon?
Answer
San Francisco Bay
Which deep-sea habitat where methane seeps support giant tube worms?
Answer
Cold seep
Which swamp in Cuba is the primary habitat of the Cuban crocodile?
Answer
Zapata Swamp