(Encyclopedia) RothamstedRothamstedrŏthˈəmstĭd [key], world's oldest and England's most important agricultural experiment station, now the main center of the Institute of Arable Crops Research (IACR…
(Encyclopedia) scale, in zoology, an outgrowth, either bony or horny, of the skin of an animal. The major component of the scales of fishes is bone, and they are formed directly in the skin membrane…
(Encyclopedia) anabolic steroidanabolic steroidănˌəbŏlˈĭk stĕrˈoid, stĭrˈ– [key] or androgenic steroidandrogenic steroidănˌdrōjĕnˈĭk [key], any of a group of synthetic derivatives of testosterone…
(Encyclopedia) dice [plural of die], small cubes used in games. They are usually made of ivory, bone, wood, plastic, or similar materials. The six sides are numbered by dots from 1 to 6, so placed…
(Encyclopedia) hagfish, primitive, jawless marine fish of the family Myxinidae, of worldwide distribution in cold and temperate waters. Its rudimentary skeleton, of cartilage rather than bone, has a…
Source: The U.S. Food and Drug Administration (FDA)Why do we need vaccines? Vaccines protect us against deadly diseases like measles, mumps and whooping cough.How do vaccines work? When you…
Skin printFootprintsCoprolitesSome of the most interesting fossils contain nothing of the dinosaur itself. They are simply the marks the animal left behind as it walked along and take the form of…
(Encyclopedia) Monte AlbánMonte Albánmōnˈtā älbänˈ [key], ancient city, c.7 mi (11.3 km) from Oaxaca, SW Mexico, capital of the Zapotec. Monte Albán was built on an artificially leveled, rocky…
(Encyclopedia) Cro-Magnon manCro-Magnon mankrō-măgˈnən, –mănˈyən [key], an early Homo sapiens (the species to which modern humans belong) that lived about 40,000 years ago. Skeletal remains and…
