Domestication of vertebratesThe domestication of vertebrates is the mutual relationship between vertebrateanimals, including birds and mammals, and the humans who influence their care and reproduction. Charles Darwin recognized a small number of traits that made domesticated species different from their wild ancestors.
WolfThe wolf (Canis lupus; pl.: wolves), also known as the grey wolf or gray wolf, is a canine native to Eurasia and North America. More than thirty subspecies of Canis lupus have been recognized, including the dog and dingo, though grey wolves, as popularly understood, include only naturally occurring wild subspecies.
Late PleistoceneSubdivision of the Quaternary according to the ICS, as of 2024.Vertical axis scale: Millions of years agoEtymologyName formalityInformalProposed name(s)TarantianUsage informationCelestial bodyEarthRegional usageGlobal (ICS)Time scale(s) usedICS Time ScaleDefinitionChronological unitAgeStratigraphic unitStageTime span formalityFormalLower boundary definitionNot formally definedLower boundary definition candidatesMarine Isotope Substage 5eLower boundary GSSP candidate section(s)NoneUpper boundary definitionEnd of the Younger DryasstadialUpper boundary GSSPNGRIP2 ice core, Greenland75°06′00″N42°19′12″W / 75.1000°N 42.3200°W / 75.1000; -42.3200Upper GSSP ratified14 June 2018 (as base of Greenlandian)The Late Pleistocene is an unofficial age in the international geologic timescale in chronostratigraphy, also known as the Upper Pleistocene from a stratigraphic perspective.
Dog sense of smellThe dog sense of smell is the most powerful sense of this species, the olfactory system of canines being much more complex and developed than that of humans. It is believed to be up to 10 million times as sensitive as a human's in specialized breeds. Dogs have roughly forty times more smell-sensitive receptors than humans, ranging from about 125 million to nearly 300 million in some dog breeds, such as bloodhounds.
Dog breedA dog breed is a particular type of dog that was purposefully bred by humans to perform specific tasks, such as herding, hunting, and guarding. Dogs are the most variable mammal on Earth, with artificial selection producing upward of 360 globally recognized breeds. These breeds possess distinct traits related to morphology, which include body size and shape, tail phenotype, fur type, etc., but are only one species of dog.
History of agricultureAgriculture began independently in different parts of the globe, and included a diverse range of taxa. At least eleven separate regions of the Old and New World were involved as independent centers of origin. The development of agriculture about 12,000 years ago changed the way humans lived. They switched from nomadic hunter-gatherer lifestyles to permanent settlements and farming. Wild grains were collected and eaten from at least 104,000 years ago.
CanidaeCanidae (; from Latin, canis, "dog") is a biological family of caniform carnivorans, constituting a clade. A member of this family is a canid (, rarely ), colloquially referred to as dogs. The family includes three subfamilies: the Caninae, and the extinct Borophaginae and Hesperocyoninae. The Caninae are the canines, and include domestic dogs, wolves, coyotes, raccoon dogs, foxes, jackals, and other species.
List of domesticated animalsThis page gives a list of domesticated animals, also including a list of animals which are or may be currently undergoing the process of domestication and animals that have an extensive relationship with humans beyond simple predation. This includes species which are semi-domesticated, undomesticated but captive-bred on a commercial scale, or commonly wild-caught, at least occasionally captive-bred, and tameable.
Selective breedingSelective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which, typically animal or plant, males and females will sexually reproduce and have offspring together. Domesticated animals are known as breeds, normally bred by a professional breeder, while domesticated plants are known as varieties, cultigens, cultivars, or breeds.
Hunter-gathererA hunter-gatherer or forager is a human living in a community (or according to an ancestrally derived lifestyle) in which most or all food is obtained by procuring naturally occurring edible items from the local wildlife and vegetation via hunting, fishing and/or gathering fruits, seeds and other plant parts (collectively known as vegetables) as well as edible fungi such as mushrooms.
SpeciesA species (pl. species) is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. It can be defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour, or ecological niche.
StarchStructure of the amylose moleculeStructure of the amylopectin moleculeStarch is a carbohydrate consisting of numerous glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants for energy storage. Worldwide, it is the most common carbohydrate in human diets, and is contained in large amounts in staple foods such as wheat, potatoes, maize (corn), rice, and cassava (manioc).*As an Amazon Associate I earn from qualifying purchases.