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ALS 4574

Glossary Vocab

TermDefinition
Altricial young that are relatively undeveloped and unable to function at a high level at birth or hatch, requiring a long period of parental care
Altruistic behavior that reduces personal fitness for benefit of others
Baleen horny substance growing as plates from upper jaws of whales of the suborder Mysticeti used to filter plankton from water
Bergmann's rule biogeographical rule that races of species from cold climates tend to be composed of individuals that physically larger then those from warmer climates
Browser an herbivore that feeds on leaves and shoots from tress and bushes rather than on grasses(Ex: deer)
Bruce effect effect in mice where the presence of a strange male or his odor causes a female to abort her pregnancy and become receptive
Camouflage pattern or coloration that helps an animal blend in with its surroundings
Canine teeth unicuspid teeth posterior to the incisors and anterior to the premolars that meat-eating mammals use to stab and grip food and for defense
Carnassial teeth long, sharp-edged teeth that meat-eating mammals that have near the back of their jaws. used to slice through meat
Carnivore any animal that eats meat; mammal that specializes in hunting other animals
Carrying capacity maximum number of animals that can be supported in a given area or habitat
Casque a hard "helmet" on a bird's head or the top of its beak
Clutch group of eggs laid at one time by a female, such as a bird or reptile
Colostrum a special type of protein-rich mammalian milk secreted during the first few days before and after parturition; containing antibodies that confer mom's immunity to various disease to the young
Concaveation exposure of a non-pregnant, non-lactating female to newborn of her species inducing retrieval and huddling over infants, and sometimes production of milk
Coprophagy eating of feces or fecal pellets
Display any relatively conspicuous pattern of behavior that conveys specific information to others, usually to members of the same species; can include visual and or vocal elements as in threat, courtship, or "greeting" displays
Echolocation process of perception, often direction finding, based upon reaction to the pattern of reflected sound waves(echos); used by bats, dolphins, and whales
Ectothermic, exothermic maintenance of body temperature by behavioral means(Ex: basking in the sun)
Endothermic maintenance of constant body temperature by means of heat produced by endogenous means(Ex: sweating, panting, shivering)
Epimeletic providing care, help or attention to others
Et-epimeletic care-seeking or soliciting behavior
Feral animal domesticated animal that has escaped from human control and taken up life in the wild
Fluke a whale or dolphin's tail; it beats up and down rather than from side to side(unlike a fish tail)
Gestation period in mammals, the time it takes an embryo/fetus to develop inside its mother's body, from the moment of fertilization to the time it is born
Grazer animal that feeds mainly on grass rather than the leaves and shoots of trees and plants(Ex: horses)
Herbivore animal whose diet is composed of plants and plant material
Hindgut fermenter herbivore that depends on microbial activity in its cecum(or hindgut) for digestion of cellulose and lignin(Ex: horses, guinea pigs)
Homeostasis maintenance of a state of psychophysiological balance within an organism by means of internal control mechanisms
Incubation act of setting on eggs to them warm
Instinct natural impusle that enables animals to follow a pattern of behavior without having to learn it first
Lek place where male animals gather during the breeding season to attract females
Lordosis a behavior, performed by females signaling their willingness to mate, in which the lumbar curvature is exaggerated
Matriarchal said of a society in which most activity and behavior are centered on the dominant female
Omnivore an animal eating a varied diet including both animal and plant tissue
Parasite animal that feeds on or inside another living animal (the host)
Placenta structure that connects the fetus and the mother's uterus to ensure a supply of nutrients to the fetus and removal of its waste products
Predator any animal that lives by hunting others
Precocial young that are well developed and able to function at a high level at hatch or birth
Pouch flap of skin on the underbelly of female marsupials that covers the mammillae
Prehensile capable of grasping and holding
Promiscuous having many indiscriminate or casual sexual relationships
Rookery colony of pinnipeds
Rorqual one of the eight species of baleen whales of the family Balaenopteridae
Rumen large stomach chamber that many plant-eating mammals use to break down their food
Ruminant herbivore that has multiple-chambered stomach where fermentation of plant material occurs
Scavenger animal that lives on leftovers, including dead remains that have been left by predators
Species category of biological classification ranking just below the genus and comprising closely related organisms potentially able to breed with each other and produce young that are both viable and fertile
Symbiosis a partnership that involves individuals or groups of two different species that is beneficial to both parties
Territory a space that is claimed by an animal for living or breeding activities
Thermoneutral range range in environmental temperature in which a mammal uses the minimum amount of energy to maintain a constant internal body temperature
Vertebrate any animal that has a backbone
Vestigial a characteristic with little or no contemporary use, but derived from one which was useful and well developed in an ancestral form
Yolk sac a sac, containing yolk, which hangs from the ventral surface of the vertebrate fetus
Zoonoses diseases transmitted from vertebrate, non-human mammals to people
Created by: David55900