While we have seen a lot of maps featuring the United States and its population size and density, there are still dozens of other countries that deserve some attention. This map shows all of the countries that have populations less than 100 million, which is quite a few.
One of the reasons countries like New Zealand, Canada, and Australia have significantly smaller populations and large land sizes are due to the climate itself. The harsh arctic climate in Northern Canada makes it very difficult for people to live there, and the arid desert climate in parts of Australia is the same. That means that countries with pleasant climates, tend to have bigger populations.