Glendale, Arizona - Basic Facts. The City of Glendale is the 6th largest city in Arizona with a population of 241,019 as of July 1, 2016. Glendale ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Arizona. See peer rankings below.
Someone who studies nature, and the organisms within nature, is called an ecologist. Generally speaking, they are people who care about the Earth and try to find ways to preserve it. Most have at least a bachelor's degree, either in ecology or some related field, such as biology or life sciences, and many have advanced graduate degrees as well. The main job of an ecologist is to perform research, and many prepare field studies based on concerns about the environment.
Zoologists are biological scientists who study animals through scientific method and theory. 1  Many Zoologists fill research or teaching roles at the university level; however, competition for research positions is keen.