Barbara McClintock
Barbara McClintock (June 16 , 1902 – September 2 , 1992 ) was a pioneering American scientist and one of the world's most distinguished cytogeneticists . McClintock received her Ph.D. in botany from Cornell University in 1927, where she was a leader in the development more
Platypus
The Platypus (Ornithorhynchus anatinus) is a semi-aquatic mammal endemic to eastern Australia , including Tasmania . Together with the four species of echidna , it is one of the five extant species of monotreme s, the only mammals that lay eggs instead of giving birth to live young. I more
AIDS
Acquired immune deficiency syndrome or acquired immunodeficiency syndrome (AIDS or Aids) is a collection of symptoms and infections resulting from the specific damage to the immune system caused by the human immunodeficiency virus (HIV) in humans, and similar viruses in other species ( more
Médecins Sans Frontières
Médecins Sans Frontières () (English : Doctors Without Borders, its official name in the United States ) is a secular humanitarian-aid non-governmental organization best known for its projects in war-torn regions and developing countries facing endemic disease .
Méde more
Xenon
Xenon ( in the UK, in the US) is a chemical element that has the symbol Xe and atomic number 54. A colorless, heavy, odorless noble gas , xenon occurs in the earth's atmosphere in trace amounts. Although generally unreactive, xenon can undergo a few chemical reaction s such as the forma more