GiganotosaurusLeg bonesHip bonesForelimbsSkullsIn the middle of the 19th century, the first fossil skeletons of some extraordinary creatures were unearthed. These skeletons are of the dinosaurs –…
HOW DO FUNGI FEED? HOW DO FUNGI REPRODUCE? ARE MUSHROOMS AND TOADSTOOLS THE SAME? FUNGI CLASSIFICATIONMOLDSFIND OUT MORENeither plants nor animals, the fungi kingdom includes toadstools, puffballs…
The Pillsbury A Mill in Minneapolis, Minn. is among American sites most at risk America's Most Endangered Places America's Most Endangered Places 2010America's Most Endangered Places…
WHY DO WINDS BLOW? WHAT FORCES AFFECT THE WORLD’S WINDS? GLOBAL WINDS MONSOONSFIND OUT MOREWinds are moving currents of air, which can blow over a small local area or over a much larger region.…
BLUE PLANETNEPTUNE’S RINGSTRITON’S GEYSERSFIND OUT MOREAlmost the same size and colour as Uranus, Neptune orbits about 1.6 billion km (1.0 billion miles) further from the Sun than Uranus.…
Gametogenesis in Plants and AnimalsInheritanceIntroductionGenes at Work: Mendel's BreakthroughMeiosis and Sexual ReproductionGametogenesis in Plants and AnimalsRegulation of Gene Expression in…
(Encyclopedia) dissociation, in chemistry, separation of a substance into atoms or ions. Thermal dissociation occurs at high temperatures. For example, hydrogen molecules (H2) dissociate into atoms (…
(Encyclopedia) Nobile, UmbertoNobile, Umberto&oomacr;mbĕrˈtō nōˈbēlā [key], 1885–1978, Italian aeronautical engineer and arctic explorer. He designed the dirigible Norge and piloted it in the…
(Encyclopedia) leech, predacious or parasitic annelid worm of the class Hirudinea, characterized by a cylindrical or slightly flattened body with suckers at either end for attaching to prey. The…
(Encyclopedia) SpitsbergenSpitsbergenspĭtsˈbərgən [key], formerly Vestspitsbergen, largest island (15,075 sq mi/39,044 sq km) of Svalbard, a Norwegian possession in the Arctic Ocean. It rises to…
