It may be possible to increase melatonin levels by adding certain foods to the diet that contain this hormone. One study explains that all plant foods include Melatonin at differing levels. Some plant foods that include more Melatonin than others are rice, tomatoes, walnuts, barley and olives.
The Maryland Zoo in Baltimore houses African elephants (Loxodonta africana) who are very different from their Asian elephant (Elephas maximus) cousins. The African elephant (Loxodonta africana) is the largest land animal in the world.he forest elephant is generally smaller, with rounder ears, and tusks that grow downward. Normally, forest elephants inhabit the rain forests of central and western Africa and do not overlap the territories of the savannah elephant.
African savannah elephants (Loxodonta Africana) live in the grasslands of sub-Saharan Africa. African forest elephant (Loxodonta Cyclotis) live in the Congo River Basin in western central Africa. Asian elephants live throughout southeastern Asia, from as far west as India to as far east as the Indonesian islands.