Myrmecophaga tridactyla . Pes muscles and their action in giant anteater Myrmecophaga tridactyla (Myrmecophagidae, Pilosa) compared with other plantigrade mammals . ... The pes myology of the giant anteater Myrmecophaga tridactyla has been studied in detail to understand its adaptive properties. ... In spite of some differences, the work of the pes muscles in the giant anteater and brown bear is basically similar, which is consistent with the similar anatomy of these muscles in these two mammals. ...