behavior: The way something, often a person or other organism, acts towards others, or conducts itself.
biology: The study of living things. The scientists who study them are known as biologists.
birds: Warm-blooded animals with wings that first showed up during the time of the dinosaurs. Birds are jacketed in feathers and produce young from the eggs they deposit in some sort of nest. Most birds fly, but throughout history there have been the occasional species that don’t.
blow: (noun) A term for the materials exhaled by whales through their blowholes. This can include air, mucus, germs and sometimes even seawater.
cavity: (in biology) An open region pocketlike structure surrounded by tissues.
echidna: Also known as the spiny anteater, this is an egg-laying mammal native to Australia, Tasmania and New Guinea. The generally solitary animal has small eyes and a long beak-like nose. It has poor vision but a keen sense of hearing and smell. The short-beaked species have dark fur largely hidden by hollow spines. Spines on long-beaked echidnas are much longer — about 5 centimeters (2 inches) long — and help to give it camouflage.
ecologist: A scientist who works in a branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
environment: The sum of all of the things that exist around some organism or the process and the condition those things create. Environment may refer to the weather and ecosystem in which some animal lives, or, perhaps, the temperature and humidity (or even the placement of things in the vicinity of an item of interest).
evaporate: To turn from liquid into vapor.
evolution: (v. to evolve) A process by which species undergo changes over time, usually through genetic variation and natural selection. These changes usually result in a new type of organism better suited for its environment than the earlier type. The newer type is not necessarily more “advanced,” just better adapted to the…
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