ENVIRONMENTS THROUGH TIME

We all live in environments that are comfortable. Fish live in water because their body only works in that habitat. The chemistry of the water makes a perfect place for fish to thrive. In a healthy environment the fish will live, produce young, and die. In the present day environments, we can see that if you change the chemistry or water availability, you can have a drastic effect on organisms. Even in the ocean, a change of temperature of just 2-5 degrees centigrade can wipe out certain species, but also make conditions better for other species. If you remove one species, it can cause a chain reaction through the food chain and cause the entire environment to change.

In the fossil record we can witness mass death and chart when a species becomes extinct. We can see if the events were at a local level or a larger regional area. These events help us interpret how the environment evolved through time.