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.
Elephantidae is the only surviving family of the order Proboscidea; other, now extinct, members of the order include deinotheres, gomphotheres, mammoths, and mastodons. Male African elephants are the largest extant terrestrial animals and can reach a height of 4 m (13 ft) and weigh 7,000 kg (15,000 lb).wo species are traditionally recognised, the African elephant (Loxodonta africana) and the Asian elephant (Elephas maximus), although some evidence suggests that African bush elephants and African forest elephants are separate species (L. africana and L. cyclotis respectively).