Biologists use math to understand how populations grow. Here’s how they do this:

1. Modeling Populations: Biologists use special math equations to predict how many living things, like animals or plants, will be in the future. One common formula is $P(t) = P_0 e^{rt}$. In this formula, $P(t)$ is the population at a certain time, $P_0$ is the starting population, $r$ is how fast the population grows, and $e$ is a special number used in math.

2. Analyzing Trends: These math equations help scientists see patterns in population changes. By studying these trends, they can learn how things like climate change or natural disasters affect living things.

3. Conservation Efforts: Math is also very helpful in planning ways to protect plants and animals. By understanding population growth, conservationists can work to keep ecosystems healthy.

This mix of math and biology shows just how amazing nature can be!