A herd is a large group of animals and is a form of collective animal behavior Collective Animal Behavior describes the coordinated behavior of large groups of similar animals and the emergent properties of these groups. Facets of this topic include the costs and benefits of group membership, the transfer of information across the group, the group decision-making process, and group locomotion and synchronization. Studying. The term is usually applied to mammals, particularly ungulates Ungulates are several groups of mammals, most of which use the tips of their toes, usually hoofed, to sustain their whole body weight while moving. They make up several orders of mammals, of which six to eight survive. There is some dispute as to whether Ungulata are a cladistic (evolution-based) group, or merely a phenetic group or folk taxon (. Other terms are used for similar phenomena in other types of animal. For example, a large group of birds is usually called a flock (this may also refer to certain mammals as well) and a large group of carnivores The diverse order Carnivora (pronounced /kɑrˈnɪvərə/ or sometimes /ˌkɑrnɪˈvɔərə/; from Latin carō "flesh", + vorāre "to devour") includes over 260 species of placental mammals. Its members are formally referred to as carnivorans, while the word "carnivore" (often popularly applied to members of this is usually called a pack. In addition, special collective nouns In linguistics, a collective noun is a word used to define a group of objects, where "objects" can be people, animals, emotions, inanimate things, concepts, or other things. For example, in the phrase "a pride of lions," pride is a collective noun may be used for particular taxa: for example a flock of geese, if not in flight, is sometimes called a gaggle A gaggle is a term of venery for a flock of geese that isn't in flight; in flight, the group can be called a skein. However, in theoretical discussions in behavioural ecology Ecology is the interdisciplinary scientific study of the interactions between organisms and their environment. Ecology is also the study of ecosystems. Ecosystems describe the web or network of relations among organisms at different scales of organization. Since ecology refers to any form of biodiversity, ecologists can conduct research on the, the generic term "herd" is used for all these kinds of assemblage. A herd may also refer to one that tends and cares for such groups (i.e. shepherds A shepherd is a person who tends to, feeds or guards sheep, especially in flocks. The word may also refer to one who provides religious guidance, as a pastor tend to sheep, and goatherds tend to goats, etc.).

When an association of animals (or, by extension, people) is described as a "herd", the implication is that the group tends to act together (for example, all moving in the same direction at a given time), but that this does not occur as a result of planning or co-ordination. Rather, each individual is choosing behaviour that corresponds to that of the majority of other members, possibly through imitation or possibly because all are responding to the same external circumstances. A herd can be contrasted with a co-ordinated group where individuals have distinct roles. Many human groupings, such as army detachments or sports teams, show such co-ordination and differentiation of roles, but so do some animal groupings such as those of eusocial insects Eusociality is a term used for the highest level of social organization in a hierarchical classification. The term "eusocial" was introduced in 1966 by Suzanne Batra and given a more definitive meaning by E. O. Wilson. It was originally defined to include those organisms (originally, only invertebrates) that had certain features:, which are co-ordinated through pheromones A pheromone is a chemical signal that triggers a natural response in another member of the same species. There are alarm pheromones, food trail pheromones, sex pheromones, and many others that affect behavior or physiology. Their use among insects has been particularly well documented. In addition, some vertebrates and plants communicate by using and other forms of animal communication Animal communication is any behavior on the part of one animal that has an effect on the current or future behaviour of another animal. The study of animal communication, sometimes called Zoosemiotics has played an important part in the methodology of ethology, sociobiology, and the study of animal cognition.

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Answer Man: Herd on the street - Post-Bulletin
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Answer Man: Herd on the street

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That said, the deer herd in the city limits remains sizable, according to city officials. A Rochester animal control worker says it's definitely as big a ...
Google News Search: Herd,
Tue Oct 27 00:11:30 2009