Trends in Drug Use. About 22.6 million Americans or 8.9% of the population are current users. of illicit drugs, meaning they use at least once per month: â¢ 13.3 million employed Americans. â¢ 4.2 million dependent on illicit drugs. â¢ 15 million dependent on alcohol. Total economic cost = $193 billion.
The African elephant is the largest of the two species left in the world. They have extremely large ears and both the males and the females grow tusks. They can be more than 12 feet tall and weight about 14,000 pounds. There are some sub species out there that are smaller with a height of about 9 feet and weighing approximately 7,500 pounds.
There are two genetically distinct species of African elephants: the savannah elephant (Loxodonta africana africana) and the forest elephant (Loxodonta africana cyclotis). Physical differences between the savannah and forest elephants are minimal but very distinct, while their social structure is very similar.he 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.