The Dolphin

In 1989, I had the unique opportunity to conduct seabird surveys aboard the NOAA research ship McArthur during a tuna-porpoise research cruise. The seabird counts were to supplement the focused cetacean surveys undertaken by two teams of 3 mammal observers, who used 25X 'big eyes' mounted gyroscopic binoculars (as shown to the left; Gary Friedrichsen in harness). These wide-ranging surveys in the eastern tropical Pacific from 1986-1990 provided evidence that porpoise numbers were declining due to tuna fishing methods. There is a close association between tuna and groups of porpoise that forage just above them (and also Sooty Terns and other tropical seabirds with the dolphin). Two NOAA ships — the McArthur and theDavid Starr Jordan — each spent four months at sea, stopping for breaks only once a month. During my 120 days at sea, standing seabird watches 2 hours on, 2 hours off, every day dawn to dusk, provided a wealth of experience with both tropical seabirds and tropical cetaceans. While my surveys were with ordinary binoculars and involved counting birds within 300 m of the ship, I did move to an extra pair of 'big eyes' whenever pods of dolphin were encountered and the ship turned off its transect to catch up with them for standardized counts. My job in those times was to identify and count the flock of birds that is always with those tuna-porpoise assemblages.
Can Dolphin talk? Maybe they can't talk with words, but they talk with sounds. They show their feelings with sounds.
Dolphin travel in a group. We call a group of fish a"School". They don't study.but they travel together in a school.Dolphin talk to the other dolphins in the school.They give information. They tell when they are happy or sad or afraid. The say "Welcome"when a dolphin comes back to the school.They talk when they play.They make a few sounds.above water.People can not hear these sound because they are very,very high.Scientists make tapes of the sounds and study them.
Sometime people catch a dolphin for a people can watch the dolphins in a show.Dolphin don't like to be away from their school in an aquarium.They are sad and lonely. There are many stories about dolphins. They help people.Sometime they save some body's life. Dolphin meat is good, but  people don't like to kill them.