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Birds are a group of warm-blooded vertebrates constituting the class Aves (/ˈeɪviːz/), characterised by feathers, toothless beaked jaws, the laying of...

In biology, taxonomy (from Ancient Greek τάξις (taxis) 'arrangement' and -νομία (-nomia) 'method') is the scientific study of naming, defining (circumscribing)...

The tomato (/təmeɪtoʊ/ or /təmɑːtoʊ/) is the edible berry of the plant Solanum lycopersicum, commonly known as the tomato plant. The species originated...

Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions...

A deer (pl.: deer) or true deer is a hoofed ruminant ungulate of the family Cervidae (informally the deer family). Cervidae is divided into subfamilies...

In taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by...

Sexual dimorphism is the condition where sexes of the same species exhibit different morphological characteristics, including characteristics not directly...

Monkey is a common name that may refer to most mammals of the infraorder Simiiformes, also known as the simians. Traditionally, all animals in the group...

Rabbits are small mammals in the family Leporidae (which also includes the hares), which is in the order Lagomorpha (which also includes pikas). The European...

Owls are birds from the order Strigiformes (/ˈstrɪdʒəfɔːrmiːz/), which includes over 200 species of mostly solitary and nocturnal birds of prey typified...

The dachshund (UK: /ˈdækshʊnd, -ənd, -hʊnt/ DAKS-huund, -⁠ənd, -⁠huunt or US: /ˈdɑːkshʊnt, -hʊnd, -ənt/ DAHKS-huunt, -⁠huund, -⁠ənt; German: 'badger dog')...

Asexuality is the lack of sexual attraction to others, or low or absent interest in or desire for sexual activity. It may be considered a sexual orientation...

Frederick Trump (born Friedrich Trump, German pronunciation: [fʁi:dʁɪç tʁʊmp]; March 14, 1869 – May 30, 1918) was a German-American businessman. He was...

The guinea pig or domestic guinea pig (Cavia porcellus), also known as the cavy or domestic cavy (/ˈkeɪvi/ KAY-vee), is a species of rodent belonging to...

Common lichen growth forms A lichen (/ˈlaɪkən/ LY-kən, UK also /ˈlɪtʃən/ LITCH-ən) is a symbiosis of algae or cyanobacteria living among filaments of multiple...

Male (symbol: ♂) is the sex of an organism that produces the gamete (sex cell) known as sperm, which fuses with the larger female gamete, or ovum, in the...

This article contains Linear B Unicode characters. Without proper rendering support, you may see question marks, boxes, or other symbols instead of Linear...

The Solanaceae (/ˌsɒləˈneɪsi.iː, -ˌaɪ/), or the nightshades, are a family of flowering plants that ranges from annual and perennial herbs to vines, lianas...

A carbohydrate (/ˌkɑːrboʊˈhaɪdreɪt/) is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom...

The alpaca (Lama pacos) is a species of South American camelid mammal. Traditionally, alpacas are kept in herds that graze on the level heights of the...