The percentage of genes or DNA that organisms share records their similarities. We share more genes with organisms that are more closely related to us. Humans belong to the biological group known as Primates, and are classified with the great apes, one of the major groups of the primate evolutionary tree.he percentage of genes or DNA that organisms share records their similarities. We share more genes with organisms that are more closely related to us. Humans belong to the biological group known as Primates, and are classified with the great apes, one of the major groups of the primate evolutionary tree.
Slothsâthe sluggish tree-dwellers of Central and South Americaâspend their lives in the tropical rain forests. They move through the canopy at a rate of about 40 yards per day, munching on leaves, twigs and buds. Sloths have an exceptionally low metabolic rate and spend 15 to 20 hours per day sleeping. And surprisingly enough, the long-armed animals are excellent swimmers. They occasionally drop from their treetop perches into water for a paddle.
Of the planet's six sloth species, four are three-toed (Bradypodidae) and two are two-toed (Megalonychidae). All sloths live in the same habitats, feeding on similar types of trees.Two-toed sloths tend to only be active at night, while three-toed sloths are active day and night. Three-toed sloths eat fruits, berries, leaves and shrubs.f the planet's six sloth species, four are three-toed (Bradypodidae) and two are two-toed (Megalonychidae). All sloths live in the same habitats, feeding on similar types of trees.