When Coral Reefs Die, Fish May Lose Survival Instincts
Researchers say young fish might need healthy coral to learn when to hide from predators.By Ryan Biek | May 15, 2016
The death of coral reefs in Australia may be doing more than wiping out habitats for fish: It may be changing their behavior.
Researchers recently put young fish in controlled environments, half with healthy coral and the other half with bleached coral.
Then they exposed them to a chemical that fish release when they're attacked. Young fish sense this alarm signal and associate it with the predator.