Monday, January 24, 2011
Dolphins
Dolphins are marine animals.They vary in size 1.4 feet to 30 feet,and weighs from 40 kg to some 40 tonnes.Dolphins are among the most intelligent animals, and their often friendly appearance and seemingly playful attitude have made them popular.Dolphins are descendants of terrestrial mammals.Like other mammals,dolphins also give birth to their descent.Their body are streamlines as modified to become marine,their body parts such as limbs are modified into fins.
Most dolphins have acute eyesight, both in and out of the water, and they can hear frequencies ten times or more above the upper limit of adult human hearing.They make ultrasonic sounds for echolocation. Membership in pods is not rigid; interchange is common. However, dolphins can establish strong social bonds; they will stay with injured or ill individuals, even helping them to breathe by bringing them to the surface if needed.There are many stories telling about friendship between human and dolphins,There are many folkstory abot dolphin saving from sharks and whales.
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It is very uncommon that we send message on bottle.But in movies and before communication there we can see message sending through bottles. In stories we heard the message in a bottle send through closed cork bottles.In histories these are found in numerous time.
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