TED-Ed: The secret lives of baby fish - Amy McDermott

The video explores the life of coral reef fish, focusing on the yellow tang. It describes their life cycle, from eggs to larvae, and the challenges they face in finding a suitable reef. Recent research shows that larval fish are not passive drifters but use sensory systems to navigate. Despite advancements, much about their journey remains unknown.

What percentage of the Earth's surface is covered by coral reefs, which host over a quarter of known fish species?

• Less than 1%

• 5%

• 20%

• 10%

What is one of the main challenges faced by larval fish during their journey in the ocean?

• Avoiding predators

• Finding food

• All of the above

• Riding the right currents

How do larval fish primarily navigate to find their adult habitats?

• By following the sun

• Using a complex suite of sensory systems

• By following other fish

• By swimming in a straight line

What recent discovery has changed the perception of larval fish's capabilities?

• They are unable to detect sound

• They rely solely on ocean currents

• They can swim strongly and navigate

• They are passive drifters

What unique method do larvae use to explore potential coral reefs for settlement?

• They wait for the tide to carry them

• They follow adult fish to the reef

• They use a bungee system to check conditions

• They jump directly onto the reef