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alarm calls

Overview page. Subjects: Evolutionary Biology — Zoology and Animal Sciences.

A vocal alarm response, common amongst birds and mammals. They often include auditory signals that make it difficult for a predator to locate the calling animal. To be difficult to locate,...

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Alloparental Care

Overview page. Subjects: Evolutionary Biology.

Alloparental care is parentlike behavior that is typically performed by individuals that are not the parent of the recipient. The term, coined by E. O. Wilson in 1975, was intended ...

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Ancient DNA

Overview page. Subjects: Evolutionary Biology.

The first recovery of DNA from preserved biological remains dates to 1984, when Russ Higuchi and his colleagues isolated mitochondrial DNA from a 140-year-old skin of a quagga (Equus...

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Archaeological Inference

Overview page. Subjects: Evolutionary Biology.

The earliest archaeological sites on earth, dating to around the same time as the earliest fossils of the genus Homo, are simple patches of stone tools, intermixed sometimes with broken ...

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Arthur James Cain

Overview page. Subjects: Evolutionary Biology.

English zoologist and evolutionary biologist, ultimately Professor of Zoology at the University of Liverpool. During the 1950s Arthur James Cain (1921–1999) became a leader in the new field...

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body plan

Overview page. Subjects: Evolutionary Biology.

The ‘blueprint’ according to which an organism develops a predetermined number, arrangement, and size of body components. The body plan is embodied and implemented by the organism's genes...

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Brain Size Evolution

Overview page. Subjects: Evolutionary Biology.

The evolution of brain size in humans is best understood by referring to the neurological data and evolutionary histories of other mammals, including nonhuman primates. Compared to most...

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C. Elegans

Overview page. Subjects: Evolutionary Biology.

The free-living nematode Caenorhabditis elegans is an important model system for studying the principles of development and pattern formation and, more recently, the evolution of...

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Cell Evolution

Overview page. Subjects: Evolutionary Biology.

All living organisms are composed of cells, which constitute the basic structural and functional unit of the biological world. According to one definition, a cell is a small, usually...

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Cell-Type Number and Complexity

Overview page. Subjects: Evolutionary Biology.

Multicellular organisms contain numbers of differentiated cell types, distinct in morphology and function, that form the basic building blocks of the body. Different types of cells were...

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