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Articles on Population density

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Tyrannosaurus rex spanned all of ancient North America, and about 20,000 lived at once. Roger Harris/Science Photo Library vie Getty Images

How many Tyrannosaurus rex walked the Earth?

Using the incredible wealth of fossil data and a modern ecological theory, researchers estimated population density for the extinct apex predator.
Many people in culturally diverse populations in Western Sydney have lived in Australia for many years, if not several generations. Shutterstock

Blaming migrants won’t solve Western Sydney’s growing pains

Reasoned debates on sustainable migration intake levels are important. But transport and health infrastructure shortfalls in Western Sydney won’t be solved by reactive anti-immigration attitudes.
More than cluster of people and buildings, urbanity is a concentration of encounters and connections. Diliff/Wikimedia Commons

What makes a city tick? Designing the ‘urban DMA’

We’re still in the early days of understanding how cities work. But we do know that creative, healthy and productive cities have certain things in common – and it’s all to do with their ‘urban DMA’.
More than any other Australian city, Melbourne has led a 30-year turnaround in inner-city density (red indicates increases and blue decreases in density as persons per square kilometre).

Density, sprawl, growth: how Australian cities have changed in the last 30 years

Many factors have influenced population density change in Australian cities over the past 30 years. Melbourne has led the way in inner-city rebirth as a way to help manage future growth.

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