1982) studied the maze of the placenta of two fetuses of sloth Bradypus tridactylus, in electronic microscopy.
Benirschke & Powell (1985) examining placenta to term of Bradypus tridactylus and Choloepus hoffimanni in the electronic microscope, they observed that the placenta was formed approximately of 20 nodules disks.
the uses of the same animals, focused in our work, that, originating from of the same area, and classified the Bradypus tridactylus.
Etologia da preguica: padroes de comportamento da Bradypus tridactylus LINNAEUS em cativeiro.
The fine structure of the placental labyrinth in the sloths, Bradypus tridactylus.