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| | Aardvark - Wikipedia, the free encyclopedia |
 | | The Aardvark was originally placed in the same order as the South American anteaters because of superficial similarities which, it is now known, are the result of convergent evolution, not common ancestry. |
 | | Although the relationships of Tubulidentata are unknown, they are probably ungulates. |
 | | The most distinctive characteristic of the Tubulidentata is (as the name implies) their teeth, which, instead of having a pulp cavity, have a number of thin tubes of dentine, each containing pulp and held together by cementum. |
| en.wikipedia.org /wiki/Tubulidentata (1071 words) |
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