Otter
Otter is a semi-aquatic fish breed mammal. The creature made of small ears, wide head oil, long tail, lace feather, is very beautiful to look at. Their tails are thick and body tall. Most of the legs have a sharp nail paw. Otter nose and ear leakage are closed during swimming. They have stiff hair like long mustache in their nose.
Their strong rodent teeth and gums are very effective in catching slippery prey or fish. Their tails are flat, 10 to 12 inches. The otters can swim very well under the water and can not go up and down to half-kilometer by submerging over the water.
Apart from Australia and Antarctica, there are otter in almost all the continents of the world, otter has been on Earth for almost 30 million years. There are three species of Otter in Bangladesh. They are found in almost all the rivers of Bangladesh.
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