Type of whales

The whales are the most surprising  creatures of the world and they live in all the seas of the world. Which are mammal, a long time ago they live in the land but now are completely adapt to the sea, like a dolphins. Also they can breath with his horn. The horn is in the upper part of his head.
The scientists think that whales and hippopotamus come from the same species but they progressed with differents ways.

There are two big group:
- The whales with beard:
They are the majority whales, which have sieve in the mouth for filter the foodstuff.
- The toothed whales:
They has fang, with witch use for hunt.

We can distinguish for his diet and his physicals features.
Also we can classify with the number of his nostril.

The whales are pursue and hunted  for the humans for two reasons:
- In some areas they hunt whales like a sport very popular because of its size.
- In other areas they hunt the whales for pet foodstuff and supplies.
These are also the main reasons why whales are an endangered animal. Nowadays the population is 5.000-12.000 whales in the world, but 300 years before the population was 239.000.



Blue whale:
It is a  whale with a beard and  it can live in almost oceans.
This whale can reach 30 m long and 160 tonne weight.
Its main power soure is krill and cepepods.

Humpback whale:

It has big pectoral fins and can live in most oceans.
The female whales are bigger than male whales.
Its main food source are small fish and krill.