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Archosauria (lit. 'ruling reptiles') or archosaurs (/ˈɑːrkəˌsɔːr/) is a clade of diapsid sauropsid tetrapods, with birds and crocodilians being the only...

An aquarium (pl.: aquariums or aquaria) is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and...

Ploidy (/ˈplɔɪdi/) is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal...

Saccharomyces cerevisiae (/ˌsɛrəˈvɪsi.iː/) (brewer's yeast or baker's yeast) is a species of yeast (single-celled fungal microorganisms). The species has...

The Tortricidae are a family of moths, commonly known as tortrix moths or leafroller moths, in the order Lepidoptera. This large family has over 11,000...

The kudus are two species of antelope of the genus Tragelaphus: Lesser kudu, Tragelaphus imberbis, of eastern Africa Greater kudu, Tragelaphus strepsiceros...

Machairodontinae is an extinct subfamily of carnivoran mammals of the family Felidae (true cats). They were found in Asia, Africa, North America, South...

The neritic zone (or sublittoral zone) is the relatively shallow part of the ocean above the drop-off of the continental shelf, approximately 200 meters...

The tanagers (singular /ˈtænədʒər/) comprise the bird family Thraupidae, in the order Passeriformes. The family has a Neotropical distribution and is the...

Transforming growth factor beta (TGF-β) is a multifunctional cytokine belonging to the transforming growth factor superfamily that includes three different...

The substantia nigra (SN) is a basal ganglia structure located in the midbrain that plays an important role in reward and movement. Substantia nigra is...

Breed broiler is any chicken (Gallus gallus domesticus) that is bred and raised specifically for meat production. Most commercial broilers reach slaughter...

The tangelo (/ˈtændʒəloʊ/ TAN-jə-loh, /tænˈdʒɛloʊ/ tan-JEL-oh; C. reticulata × C. maxima or × C. paradisi), Citrus × tangelo, is a citrus fruit hybrid...

Horse behavior is best understood from the view that horses are prey animals with a well-developed fight-or-flight response. Their first reaction to a...

The boll weevil (Anthonomus grandis) is a species of beetle in the family Curculionidae. The boll weevil feeds on cotton buds and flowers. Thought to be...

Ulmus crassifolia Nutt., the Texas cedar elm or simply cedar elm, is a deciduous tree native to south-central North America, mainly in southern and eastern...

The most recent understanding of the evolution of insects is based on studies of the following branches of science: molecular biology, insect morphology...

Spix's macaw (Cyanopsitta spixii), also known as the little blue macaw, is a macaw species that was endemic to Brazil. It is a member of tribe Arini in...

Psyllidae, the jumping plant lice or psyllids, are a family of small plant-feeding insects that tend to be very host-specific, i.e. each plant-louse species...

Cryobiology is the branch of biology that studies the effects of low temperatures on living things within Earth's cryosphere or in science. The word cryobiology...