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Pollen is a powdery substance produced by most types of flowers of seed plants for the purpose of sexual reproduction. It consists of pollen grains (highly...

Dominance and submission (D/s) is a set of behaviors, customs, and rituals involving the submission of one person to another in an erotic episode or lifestyle...

Sorrel (Rumex acetosa), also called common sorrel or garden sorrel, is a perennial herbaceous plant in the family Polygonaceae. Other names for sorrel...

R-SMADs are receptor-regulated SMADs. SMADs are transcription factors that transduce extracellular TGF-β superfamily ligand signaling from cell membrane...

Tragelaphus is a genus of medium-to-large-sized spiral-horned antelopes. It contains several species of bovines, all of which are relatively antelope-like...

Austrobaileya is the sole genus consisting of a single species that constitutes the entire flowering plant family Austrobaileyaceae. The species Austrobaileya...

The bonnethead (Sphyrna tiburo), also called a bonnet shark or shovelhead, is a small member of the hammerhead shark genus Sphyrna, and part of the family...

Malagueta pepper (Portuguese pronunciation: [mɐlɐˈɡetɐ]), a variety of Capsicum frutescens, is a type of chili pepper widely used in the Portuguese-speaking...

Population control is the practice of artificially maintaining the size of any population. It simply refers to the act of limiting the size of an animal...

A prothallus, or prothallium, (from Latin pro = forwards and Greek θαλλος (thallos) = twig) is usually the gametophyte stage in the life of a fern or other...

George Engelmann, also known as Georg Engelmann, (2 February 1809 – 4 February 1884) was a German-American botanist. He was instrumental in describing...

The Bouvier des Flandres is a herding dog breed originating in Flanders, Belgium. They were originally used for general farm work including cattle droving...

Vibrio alginolyticus is a Gram-negative marine bacterium. It is medically important since it causes otitis and wound infection. It is also present in the...

Moschofilero (Greek Μοσχοφίλερο) is an aromatic white grape of Greek origins with a pink/purple skin and quite spicy flavor with good acidity. Grown throughout...

Cultured pearls are pearls which are formed within a cultured pearl sac with human intervention in the interior of productive living molluscs in a variety...

Tempo and Mode in Evolution (1944) was George Gaylord Simpson's seminal contribution to the evolutionary synthesis, which integrated the facts of paleontology...

A stratified squamous epithelium consists of squamous (flattened) epithelial cells arranged in layers upon a basal membrane. Only one layer is in contact...

A neurochip is an integrated circuit chip (such as a microprocessor) that is designed for interaction with neuronal cells. It is made of silicon that is...

Lomatium is a genus in the family Apiaceae. It consists of about 100 species. Its common names include biscuitroot, Indian parsley, and desert parsley...

Watermelon seed oil is extracted by pressing from the seeds of the Citrullus lanatus (watermelon). It is particularly common in West Africa, where it is...