Dog in the context of "Dogs in space"

In European folklore of the medieval and early modern periods, familiars (strictly familiar spirits, as "familiar" also meant just "close friend" or companion, and may be seen in the scientific name for dog, Canis familiaris) were believed to be supernatural entities, interdimensional beings, or spiritual guardians that would protect or assist witches and cunning folk in their practice of magic, divination, and spiritual insight. According to records of the time, those alleging to have had contact with familiar spirits reported that they could manifest as numerous forms, usually as an animal, but sometimes as a human or humanoid figure, and were described as "clearly defined, three-dimensional... forms, vivid with colour and animated with movement and sound", as opposed to descriptions of ghosts with their "smoky, undefined form[s]".

When they served witches, they were often thought to be malevolent, but when working for cunning folk, they were often considered benevolent (although there was some ambiguity in both cases). The former were often categorized as demons, while the latter were more commonly thought of and described as fairies. The main purpose of familiars was to serve the witch, providing protection for them as they came into their new powers.

In philosophy and the arts, a fundamental distinction exists between abstract and concrete entities. While there is no universally accepted definition, common examples illustrate the difference: numbers, sets, and ideas are typically classified as abstract objects, whereas plants, dogs, and planets are considered concrete objects.

Philosophers have proposed several criteria to define this distinction:

Skijoring (pronounced /ˌskiːˈdʒɔːrɪŋ/) is a winter sport in which a person on skis is pulled by a horse, a dog (or dogs), another animal, or a motor vehicle. The name is derived from the Norwegian word skikjøring, meaning "ski driving". Although skijoring is said to have originated as a mode of winter travel, it is currently primarily a competitive sport.

An omnivore (/ˈɒmnɪvɔːr/) is an animal that eats both plant and animal matter. Obtaining energy and nutrients from plant and animal matter, omnivores digest carbohydrates, protein, fat, and fiber, and metabolize the nutrients and energy of the sources absorbed. Often, they have the ability to incorporate food sources such as algae, fungi, and bacteria into their diet.

Omnivores come from diverse backgrounds that often independently evolved sophisticated consumption capabilities. For instance, dogs evolved from primarily carnivorous organisms (Carnivora) while pigs evolved from primarily herbivorous organisms (Artiodactyla). Despite this, physical characteristics such as tooth morphology may be reliable indicators of diet in mammals, with such morphological adaptation having been observed in bears.

Domestication is a multi-generational mutualistic relationship in which an animal species, such as humans or leafcutter ants, takes over control and care of another species, such as sheep or fungi, to obtain from them a steady supply of resources, such as meat, milk, or labor. The process is gradual and geographically diffuse, based on trial and error. Domestication affected genes for behavior in animals, making them less aggressive. In plants, domestication affected genes for morphology, such as increasing seed size and stopping the shattering of cereal seedheads. Such changes both make domesticated organisms easier to handle and reduce their ability to survive in the wild.

The first animal to be domesticated by humans was the dog, as a commensal, at least 15,000 years ago. Other animals, including goats, sheep, and cows, were domesticated around 11,000 years ago. Among birds, the chicken was first domesticated in East Asia, seemingly for cockfighting, some 7,000 years ago. The horse came under domestication around 5,500 years ago in central Asia as a working animal. Among invertebrates, the silkworm and the western honey bee were domesticated over 5,000 years ago for silk and honey, respectively.

The 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. The wolf is the largest wild extant member of the family Canidae, and is further distinguished from other Canis species by its less pointed ears and muzzle, as well as a shorter torso and a longer tail. The wolf is nonetheless related closely enough to smaller Canis species, such as the coyote and the golden jackal, to produce fertile hybrids with them. The wolf's fur is usually mottled white, brown, grey, and black, although subspecies in the arctic region may be nearly all white.

Of all members of the genus Canis, the wolf is most specialized for cooperative game hunting, as demonstrated by its physical adaptations to tackling large prey, its more social nature, and its highly advanced expressive behaviour, including individual or group howling. It travels in nuclear families, consisting of a mated pair accompanied by their offspring. Offspring may leave to form their own packs on the onset of sexual maturity and in response to competition for food within the pack. Wolves are also territorial, and fights over territory are among the principal causes of mortality. The wolf is mainly a carnivore and feeds on large wild hooved mammals as well as smaller animals, livestock, carrion, and garbage. Single wolves or mated pairs typically have higher success rates in hunting than do large packs. Pathogens and parasites, notably the rabies virus, may infect wolves.

A pedigree chart is a diagram that shows the occurrence of certain traits through different generations of a family, most commonly for humans, show dogs, and race horses.

Domestic dogs (Canis familiaris) have held significant and diverse roles in the religions and mythologies of numerous cultures throughout human history. In the context of the history of religion, the roles of dogs range from symbolic representations of virtues like loyalty and protection to teachings about purity and ritual practices. In Animals and World Religion, animal ethicist Lisa Kemmerer explores the relationship between animals and global religious traditions. The work examines how different religions perceive and engage with animals, emphasizing their roles in religious narratives and rituals and highlighting the connection between humans and animals in spiritual contexts.

In mythology, dogs often served in companion and protective roles, such as guarding the gates of the underworld in Indo-European mythologies. Historian Julien d'Huy identifies a common set of three narratives about dogs that appear in various religious traditions. The first narrative emphasizes a connection to the afterlife, reflecting the gatekeeping role often seen in Indo-European mythologies. The second narrative focuses on the bond between humans and dogs, while the third pertains to the association of dogs with the star Sirius. Evidence presented by d'Huy suggests an association between the mythological records from various cultures and the genetic and fossil records related to dog domestication.

Shisa (シーサー, shīsā) is a traditional Ryukyuan cultural artifact and decoration derived from Chinese guardian lions, often seen in similar pairs, resembling a cross between a lion and a dog, from Okinawan mythology. Shisa are wards, believed to protect from some evils. People place pairs of shisa on their rooftops or flanking the gates to their houses, with the left shisa traditionally having a closed mouth, the right one an open mouth. The open mouth shisa traditionally wards off evil spirits, and the closed mouth shisa keeps good spirits in.