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The classification of the mammals according to the kind and the number of teeth

The mammals

The mammals are classified according to the kind and the number of the teeth into the edentates mammals (The teethless mammals), and the mammals having teeth.

The edentates mammals

The edentates mammals (the teethless mammals) such as the sloth and the armadillo.

The mammals having teeth

The mammals having teeth are divided according to the shape and the kind of the teeth into:

There are animals which have front teeth extending outwards to capture the insects such as the hedgehog, The mammal’s teeth are specialized for the food it eats and it is usually possible to determine a mammal’s diet by examining its teeth.

Tiger

The tiger has front teeth extending outwards.

The incisors which are the front teeth are used for biting and cutting the food, The canines are used for stabbing and holding, Lining the jaw are the premolars and the molars.

As the mammal chews, its upper and lower molars fit together, crushing and grinding the food, There are animals which have the pointed canines, and the molars with sharp projections such as the lion, the tiger, and all the carnivorous.

There are animals which have the sharp incisors which are divided according to the number of the incisors in each jaw into the rodents and the lagomorphs.

The rodents have one pair of the incisors in each jaw such as the rat, the jerboa, and the squirrel, The lagomorphs have two pairs of the incisors in the upper jaw, and one pair in the lower jaw such as the rabbit.

Modern classification of living organisms, Kingdom (Monera and Protista)

Principles of living organisms classification and Taxonomic hierarchy

Food relationships among living organisms (Predation, Symbiosis & Saprophytism)

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