Entomology, the study of insects. Scientists specializing in this field are called entomologists. They are chiefly interested in how each kind of insect either harms or benefits humans. They study the origin, development, structure, habits, and distribution of insects. Entomologists work in universities, for government agencies, and in private industry. They have helped chemists develop insecticides, farmers control crop and livestock pests, and physicians conquer diseases spread by insects.
Stem cells are a controversial topic because they are grown from human embryos. Learn about the controversy and get the facts here.
Can you catch someone else's joy like you can catch a cold? Some researchers say that happiness is infectious -- and which people in your social network spread it best might surprise you.