Zoological terms

Zoological terms

Terms in relation to animals, such as mammals, birds, reptiles or fish.

Industry: Zoology

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Zoological terms

Active transport

Zoology; Zoological terms

The movement of ions or other substances across a membrane such in the direction of increasing concentration (and thus requires an expenditure of energy).

Adaptive radiation

Zoology; Zoological terms

A type of evolutionary change in which a number of new forms develop from a single original form in response to the availability of new habitats.

After-shaft

Zoology; Zoological terms

A double feather that grows from the shaft of a body feather. An after-shaft is important in maintaining warmth and is known to occur in grouse, quail, and relatives.

Acclimation

Zoology; Zoological terms

Reversible physiological or morphological changes an organism experiences in response to changing environmental conditions; such physiological changes enable the organism to tolerate the new ...

Activity space

Zoology; Zoological terms

The range or spectrum of environmental conditions and characteristics suitable for the normal activity of an organism.

Age class

Zoology; Zoological terms

The set of individuals in a population that are all of a particular age or fall within a specfied age group.

An area that develops on the lower abdomen of birds in which the feathers drop off and the skin thickens and becomes densely populated with blood vessels. Used in incubation to keep eggs and young ...