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fiddler crab

(Encyclopedia)fiddler crab, common name for small, amphibious crabs belonging to the genus Uca. They are characterized by a rectangular carapace (shell) and a narrow abdomen, which is flexed under the body. They ar...

leopard

(Encyclopedia)leopard, large carnivore of the cat family, Panthera pardus, widely distributed in Africa and Asia. It is commonly yellow, buff, or gray, patterned with black spots and rings. The rings, unlike those ...

protective coloration

(Encyclopedia)protective coloration, coloration or color pattern of an animal that affords it protection from observation either by its predators or by its prey. The most widespread form of protective coloration is...

pituitary gland

(Encyclopedia)pituitary gland, small oval endocrine gland that lies at the base of the brain. It is sometimes called the master gland of the body because all the other endocrine glands depend on its secretions for ...

drug poisoning

(Encyclopedia)drug poisoning, toxic effects caused by an administered drug. Worldwide more than 9 million natural and synthetic chemicals have been identified; fewer than 3000 cause more than 95% of acidental and d...

eye

(Encyclopedia)CE5 Cross section of human eye eye, organ of vision and light perception. In humans the eye is of the camera type, with an iris diaphragm and variable focusing, or accommodation. Other types of ey...

flatfish

(Encyclopedia)flatfish, common name for any member of the unique and widespread order Pleuronectiformes containing over 500 species (including the flounder, halibut, plaice, sole, and turbot), 130 of which are Amer...

Health and Human Services, United States Department of

(Encyclopedia)Health and Human Services, United States Department of, federal executive department charged with administering government health programs. Successor to the Department of Health, Education, and Welfar...

Karlin, John Elias

(Encyclopedia)Karlin, John Elias, American industrial psychologist and human-factors engineering pioneer, b. Johannesburg, South Africa, grad. Univ. of Cape Town (B.A., M.A.), Univ. of Chicago (Ph.D., 1942). With a...

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