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A petroglyph is an image created by removing part of a rock surface by incising, picking, carving, or abrading, as a form of rock art. Outside North America...

Dendrology (Ancient Greek: δένδρον, dendron, "tree"; and Ancient Greek: -λογία, -logia, science of or study of) or xylology (Ancient Greek: ξύλον, ksulon...

An organ system is a biological system consisting of a group of organs that work together to perform one or more functions. Each organ has a specialized...

Sir Richard Owen KCB FRMS FRS (20 July 1804 – 18 December 1892) was an English biologist, comparative anatomist and palaeontologist. Owen is generally...

Wildlife trade refers to the products that are derived from non-domesticated animals or plants usually extracted from their natural environment or raised...

Red Pineapple is a German apple cultivar which is widely used in Denmark (Danish: Rød Ananas). Sonneruplund recommends this apple variety for private gardens...

Cananga odorata, known as ylang-ylang (/ˈiːlæŋ ˈiːlæŋ/ EE-lang-EE-lang) or cananga tree, is a tropical tree that is native to the Philippines, Malaysia...

In genomics, DNA–DNA hybridization is a molecular biology technique that measures the degree of genetic similarity between DNA sequences. It is used to...

In botany and ecology, a graminoid refers to a herbaceous plant with a grass-like morphology, i.e., elongated culms with long, blade-like leaves. They...

An Elizabethan collar, E collar, pet ruff or pet cone (sometimes humorously called a treat funnel, lamp-shade, radar dish, dog-saver, collar cone, or cone...

Malaria has had a significant impact on the history of the Caribbean, due to its effects on the colonization of the islands and the corresponding impact...

Lake Waccamaw is a fresh water lake located in Columbus County in North Carolina. It is the largest of the natural Carolina Bay lakes. Although bay trees...

Aphonopelma is a genus of tarantulas native to the Americas. It includes nearly all the North American tarantula species north of Mexico and a considerable...

Neural computation is the information processing performed by networks of neurons. Neural computation is affiliated with the philosophical tradition known...

Pear tomato or teardrop tomato is the common name for any one in a group of indeterminate heirloom tomatoes. There are yellow, orange, and red varieties...

The British Wildlife Centre is a zoo in the hamlet of Newchapel near Lingfield village in the county of Surrey, South East England. The zoo was founded...

The black hairstreak (Satyrium pruni) is a butterfly in the family Lycaenidae. The butterfly is native to Europe, from Scandinavia to Ukraine, and is found...

Pueraria montana is a species of plant in the botanical family Fabaceae. At least three sub-species (alternatively called varieties) are known. It is closely...

The 2002 FEI World Equestrian Games were held in Jerez de la Frontera, Spain, from 10 to 22 September 2002. They were the 4th edition of the games which...

James Herbert Veitch F.L.S., F.R.H.S. (1 May 1868 – 13 November 1907), was a member of the Veitch family who were distinguished horticulturists and nursery-men...