News: DEEP SECRETS

Undersea gossip? Fish too Talk     The undersea world isn't as quiet as we though, according to a New Zealand researcher who found fish can "talk" to each other.          Fish communicate with noises including grunts, chirps and pops, University of Auckland marine scientist Shahriman Ghazali has discovered according to newspaper reports on Wednesday.         "All fish can hear, but not all can make sound - pops and other sounds made by vibrating their swim bladder, a muscle they can contract," Ghazali told the New Zealand Herald.         Fish are believed to communicate with eachother for different reasons, including attracting mates, scaring off predators or orienting themselves. The gurnard species has a wide vocal repertoire and keeps up a costant chatter, Ghazali found after studying different species of fish placed into tanks.        On the other hand, cod usually kept silent, except when they were spawning. "the hypothesis is that they are using sound as a synchronisation so that the male and female release their eggs at the same time for fertilization. "he said.         But anyone hoping to strike up a conversation with their per goldfish is out of luck. "Goldfish have excellent hearing. But excellent hearing doesn't associate with vocalisation -0 they don't make any sound whats over," Ghazali said.