Crowd+or+swarm
81Bird migration — A flock of Barnacle Geese during autumn migration …
82Herd — Covey redirects here. For other uses, see Covey (disambiguation). For other uses, see Herd (disambiguation). Boy herding a flock of sheep, India; a classic example of the domestic herding of animals …
83Diel vertical migration — Diel vertical migration, also known as diurnal vertical migration, is a pattern of movement that some organisms living in the ocean and in lakes undertake each day. Usually organisms move up to the epipelagic zone at night and return to the… …
84Group size measures — A group acts as a social environment of individuals: Great Woodswallows. Many animals, including humans, tend to live in groups, herds, flocks, bands, packs, shoals, or colonies (hereafter: groups) of conspecific individuals. The size of these… …
85List of Doctor Who universe creatures and aliens — This is a list of fictional creatures and aliens from the universe of the long running BBC science fiction television series Doctor Who, including Torchwood, The Sarah Jane Adventures and K 9. It covers alien races and other fictional creatures,… …
86Mutualism (biology) — Hummingbird Hawkmoth drinking from Dianthus. Pollination is a classic example of mutualism. Mutualism is the way two organisms of different species biologically interact in a relationship in which each individual derives a fitness benefit (i.e.,… …
87Animal migration — Wildebeest Connochaetes taurinus crossing a river in East Africa. Animal migration is the relatively long distance movement of individuals, usually on a seasonal basis. It is a ubiquitous phenomenon, found in all major animal groups, including… …
88Mobbing (animal behavior) — For mobbing in relation to human bullying behavior see Mobbing Crows mobbing a Red tailed Hawk. Mobbing in animals is an antipredator behavior which occurs when individuals of a certain species …
89Lepidoptera migration — Monarch butterfly is the most well known migrant amongst the Lepidoptera …
90troop — /troohp/, n. 1. an assemblage of persons or things; company; band. 2. a great number or multitude: A whole troop of children swarmed through the museum. 3. Mil. an armored cavalry or cavalry unit consisting of two or more platoons and a… …
