nest-building frog

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• nest — nestable, adj. nester, n. nestlike, adj. nesty, adj. /nest/, n. 1. a pocketlike, usually more or less circular structure of twigs, grass, mud, etc., formed by a bird, often high in a tree, as a place in which to lay and incubate its eggs and rear …   Universalium

• Leptodactylidae — ▪ frog family       family of frogs (order Anura), including more than 900 species, most of which are found in South and Central America. Leptodactylid frogs live in water, on land, or in trees. More than 300 species, most of them West Indian or… …   Universalium

• animal behaviour — Introduction       any activity of an intact organism.       A living animal behaves constantly in order to survive, and all animals must solve the same basic problems. They must, for instance, periodically replace their energy source (consume… …   Universalium

• White Stork — Two adults in Germany Conservation status …   Wikipedia

• reproductive behaviour — In animals, any activity directed toward perpetuation of a species. Sexual reproduction, the most common mode, occurs when a female s egg is fertilized by a male s sperm. The resulting unique combination of genes produces genetic variety that… …   Universalium

• Spawn (biology) — The spawn (eggs) of a clownfish. The black spots are the eyes developing. Spawn refers to the eggs and sperm released or deposited, usually into water, by aquatic animals. As a verb, spawn refers to the process of releasing the eggs and sperm,… …   Wikipedia

• Anura — ▪ amphibian order Introduction also called  Salientia    one of the major extant orders of the class Amphibia (amphibian). It includes the frogs (frog) and toads (toad), which, because of their wide distribution, are known by most people around… …   Universalium

• instinct — instinct1 /in stingkt/, n. 1. an inborn pattern of activity or tendency to action common to a given biological species. 2. a natural or innate impulse, inclination, or tendency. 3. a natural aptitude or gift: an instinct for making money. 4.… …   Universalium

• reptile — reptilelike, adj. reptiloid /rep tl oyd /, adj. /rep til, tuyl/, n. 1. any cold blooded vertebrate of the class Reptilia, comprising the turtles, snakes, lizards, crocodilians, amphisbaenians, tuatara, and various extinct members including the… …   Universalium

• The Trials of Life — Infobox nature documentary bgcolour = show name = The Trials of Life caption = Trials of Life DVD cover picture format = 4:3 audio format = Stereo runtime = 50 minutes creator = developer = producer = executive producer = Peter Jones presented =… …   Wikipedia

• Bioadhesives — are natural polymeric materials that act as adhesives. The term is sometimes used more loosely to describe a glue formed synthetically from biological monomers such as sugars, or to mean a synthetic material designed to adhere to biological… …   Wikipedia