|
Roughhousing
Rough-and-tumble play, also called play fighting, is a form of Play (activity), play where participants compete with one another attempting to obtain certain advantages (such as biting or pushing the opponent onto the ground) but play in this way without the severity of genuine fighting (which rough-and-tumble play resembles). Rough-and-tumble play is one of the most common forms of play in both humans and non-human animals. It has been pointed out that despite its apparent aggressiveness, rough-and-tumble play is helpful for encouraging cooperation, cooperative behavior and cultivation of social skills. For rough-and-tumble play to remain "play" (instead of spiraling into a real fight), there has to be cooperation (e.g., with participants agreeing to not actually exert forces in pretend punches). Sometimes, one participant may push or hit harder than expected, and then the other participants will have to decide whether it was an unintended mistake or a malicious transgression. Thus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Sequence Of Play Fighting Is Shown For A Pair Of Juvenile Rats
A, or a, is the first Letter (alphabet), letter and the first vowel letter of the Latin alphabet, used in the modern English alphabet, and others worldwide. Its name in English is ''English alphabet#Letter names, a'' (pronounced ), plural ''aes''. It is similar in shape to the Ancient Greek letter alpha, from which it derives. The uppercase version consists of the two slanting sides of a triangle, crossed in the middle by a horizontal bar. The lowercase version is often written in one of two forms: the double-storey and single-storey . The latter is commonly used in handwriting and fonts based on it, especially fonts intended to be read by children, and is also found in italic type. In English, ''English articles, a'' is the indefinite article, with the alternative form ''an''. Name In English, the name of the letter is the ''long A'' sound, pronounced . Its name in most other languages matches the letter's pronunciation in open syllables. History The earliest know ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canis Familiaris
The dog (''Canis familiaris'' or ''Canis lupus familiaris'') is a Domestication of vertebrates, domesticated descendant of the gray wolf. Also called the domestic dog, it was Selective breeding, selectively bred from a population of wolves during the Late Pleistocene by hunter-gatherers. The dog was the first species to be domesticated by humans, over 14,000 years ago and before the History of agriculture, development of agriculture. Due to their long association with humans, dogs have gained the ability to thrive on a starch-rich diet that would be inadequate for other Canidae, canids. Dogs have been bred for desired behaviors, sensory capabilities, and physical attributes. Dog breeds vary widely in shape, size, and color. They have the same number of bones (with the exception of the tail), powerful jaws that house around 42 teeth, and well-developed Dog sense of smell, senses of smell, hearing, and sight. Compared to humans, dogs possess a superior sense of smell and heari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alouatta Pigra
Howler monkeys (genus ''Alouatta'', monotypic in subfamily Alouattinae) are the most widespread primate genus in the Neotropical realm, Neotropics and are among the largest of the New World monkey, platyrrhines along with the muriquis (''Brachyteles''), the spider monkeys (''Ateles'') and woolly monkeys (''Lagotrix''). The monkeys are native to South America, South and Central American forests. They are famous for their Howling, howls, which can be heard from a distance through dense rain forest. Fifteen species are recognized. Previously classified in the Family (biology), family Cebidae, they are now placed in the family Atelidae. They are primarily folivores but also significant frugivores, acting as seed dispersal agents through their digestive system and their Animal locomotion, locomotion. Threats include human predation, habitat destruction, Wildlife trade, illegal wildlife trade, and Captivity (animal), capture for pets or zoo animals. Classification Anatomy and physiol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ateles Geoffroyi
Geoffroy's spider monkey (''Ateles geoffroyi''), also known as the black-handed spider monkey or the Central American spider monkey, is a species of spider monkey, a type of New World monkey, from Central America, parts of Mexico and possibly a small portion of Colombia. There are at least five subspecies. Some primatologists classify the black-headed spider monkey (''A. fusciceps''), found in Panama, Colombia, and Ecuador as the same species as Geoffroy's spider monkey. It is one of the largest New World monkeys, often weighing as much as . Its arms are significantly longer than its legs, and its prehensile tail can support the entire weight of the monkey and is used as an extra limb. Its hands have only a vestigial thumb, but long, strong, hook-like fingers. These adaptations allow the monkey to move by swinging by its arms beneath the tree branches. Geoffroy's spider monkey lives in fission–fusion societies that contain between 20 and 42 members. Its diet consists pri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lemur Catta
The ring-tailed lemur (''Lemur catta'') is a medium- to larger-sized strepsirrhine (wet-nosed) primate and the most internationally recognized lemur species, owing to its long, black-and-white, ringed tail. It belongs to Lemuridae, one of five lemur families, and is the only member of the ''Lemur'' genus. Like all lemurs, it is endemic to the island of Madagascar, where it is endangered. Known locally in Malagasy as ' (, spelled ' in French) or ', it ranges from gallery forests to spiny scrub in the southern regions of the island. It is omnivorous, as well as the most adapted to living terrestrially of the extant lemurs. The ring-tailed lemur is highly social, living in groups—known as "troops"—of up to 30 individuals. It is also a female-dominant species, a commonality among lemurs. To keep warm and reaffirm social bonds, groups will huddle together. Mutual grooming is another vital aspect of lemur socialization (as with all primates), reaffirming social and fam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
