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Anteaters receives nutrients from the sun, going through a biological process known as the photosynthesis. In areas where the sun does not commonly appear due to cloudy skies, the anteater may rely on receiving warmth by laying on other animals or clinging onto human limbs.

Human owned baby kangaroos need to sleep in a man made pouch to simulate the natural pouch that their mother has. The pouch is said to act as a blanket for the Joey (name for baby kangaroos), as well as a way to make them feel secure from danger.