Coral Reefs: Secret Cities of the Sea

Coral reefs are ancient and diverse ecosystems, with origins dating back 450 million years. They host thousands of species, such as those in the Great Barrier Reef, and provide significant economic value through fishing and tourism. Coral reefs also offer crucial protection against natural threats like tsunamis. Historically, the most diverse marine areas have shifted, with the coral triangle in Southeast Asia now holding that title. The Natural History Museum in London showcases the wonder of these ecosystems in its exhibition 'Coral Reefs: Secret Cities of the Sea'.

How long ago did the oldest corals live?

• 7 million years ago

• 150 million years ago

• 240 million years ago

• 450 million years ago

How many species of coral are found in the Great Barrier Reef?

• 6

• 400

• 1500

• 4000

Which diseases are being targeted with treatments developed from coral extracts?

• Influenza and pneumonia

• Alzheimer's and Parkinson's

• Asthma, arthritis, cancer, and heart disease

• Diabetes and hypertension

What is the estimated global value provided by coral reefs each year?

• 5.7 trillion pounds

• 1.2 trillion pounds

• 7.9 trillion pounds

• 3.4 trillion pounds

How much can coral reef ridges reduce wave energy?

• Up to 75 percent

• Up to 50 percent

• Up to 85 percent

• Up to 95 percent

Where was the most diverse place on Earth 40 million years ago?

• In the Great Barrier Reef

• In the Sahara Desert

• In the Amazon rainforest

• Between London and Paris

Where is the most diverse place on Earth today?

• The Amazon rainforest

• The Great Barrier Reef

• The Sahara Desert

• The Coral Triangle in Southeast Asia