Produced in German, this series contains 20 lessons on the intermediate level for teachers to use in foreign language science study. The largest living land animals are the African elephants. Males can weigh up to 13,000 pounds and reach shoulder heights of 10 to 13 feet. These animals are very strong and highly intelligent, and they are usually a dull brownish-gray. The size and shape of their ears distinguish them from Asian elephants. The ears of an African elephant are larger than an Asian elephant, and their ears also look like the continent of Africa. However, this animal is listed as threatened as a result of loss of habitat and poaching.