It's the Tubulidentata, which is solely represented by the Aardvark (Orycteropus afer), an animal that occupies grassland and savanna habitats in sub-Saharan Africa. They're the size of small pigs, with very thick skin and without a fat layer, but are more easily recognized by their long nose. Adults have an unique dental formula (0/0, 0/0, 2/2, 3/3), which is why they are categorized in a separated order.
The aardvarks are nocturnal, solitary and territorial animals, coming toghether only to breed. It is believed that they breed earlier in the year the closer they are to the Equator.