Реферат по предмету "Иностранный язык"


Dolphins Essay Research Paper Some people claim

Dolphins Essay, Research Paper

Some people claim that dolphins and whales communicate in such a way that it is very

similar to human speech. An analysis will be coucted to determine if there is more similarity or

difference between these animals and humans.

Dolphins are aquatic mammals closely related to whales. They aresleek and powerful

swimers. They can be found in all seas around the world. It is interesting to point out that they

spend about 99% of their time on the water. This affects their consiouness. It means that they have

strong feelings and wiilpower.

These animals have the ability of swimming at speeds of up to 30 km per hour. Their lungs

are adapted to resist the physical problems created by rapid changes in preassure. another

characteristic of dolphins is that they eat an amount of food , mostly fish and squid, equevalent to

nearly one third of their weight. Dolphins can learn and remember things, wether the information

arrives throuh their ears or eyes. They can also distinguish different items and understand a visually

based sign language.

They see well both under water and in air. Howevwer, dolphins vision is better at distances

greather than one meter. In water their vision is best at distances of less than a meter. Neverless,

they don’t seened to posses true color vision.

Dolphins can produce a wide variety of sounds incliding clicking and whistles. They

communicate with each other under water, and their sounds in the air are attemps to speak with

people. They also sed out calls and warning signals. It represents a behavior similar to the human

beings.

In the animal kingdom, dolphins are the best users and perceivers of sound. They are able

to recognize different melodies and sounds. Their vocalization is produced by forcing air back an

forth between air sacs inside their bodies. Without this communication and interdependence they

would have dissapeared from the planet, having joined the dinosaurs as an extinct specie, among

others.

The voice of the dolphins in air is like the humans. They can pronounce vowels, but have

difficulties with consonants. This situation means that they havea voice that sometimes could be

perceived as a human voice. Dolphins know that certains gestures and sounds symbolize a particular

command, and they always want to understand it. These animals have a brain larger than a human.

Several studies have shown that dolphins have an intelligence that is very competitive versus human.

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