Say, Thomas (1787–1834), a United States naturalist. He wrote the first major American works on insects (American Entomology, 3 volumes, 1824–28) and shells (American Conchology, 2 volumes, 1830–34). Say was born in Philadelphia. He served as zoologist on the United States government expeditions, led by Stephen H. Long, to the Rocky Mountains (1819–20) and the source of the Minnesota River (1823). Say was curator of the American Philosophical Society, 1821–27, and professor of natural history at the University of Pennsylvania, 1822–28. He was a founding member of the Academy of Natural Sciences in Philadelphia.
Everyone is talking green these days, but do you know that we also have to take extra steps to help save the worlds rainforests? Developing countries that are anxious to produce cash crops are rapidly destroying valuable rainforests. The world’s rainforests help sustain our delicate ecological balance and we will be in big trouble if we do not preserve them. Take this quiz now to learn how to help save the rainforests.
Sustainable homes are becoming more and more popular as people become more aware of their carbon footprints. How are sustainable homes changing for the 21st century?