Tropical rainforests are the most diverse ecosystem on Earth, and also the oldest.

Despite the low quality of the remains, however, the fossils present an extremely diverse ecosystem.

They are among the most biologically diverse ecosystems in the country.

It is the state's largest zoo, housing animals from diverse ecosystems.

So we're going to have a diverse ecosystem for a long time.

Therefore, larger urban open spaces, especially those with various types of environments, are more likely to support a diverse ecosystem.

It has one of the most diverse ecosystems found in the Cascade Range.

The national park is characterized by a diverse ecosystem.

Louisiana is in a sub tropical region, and has a diverse ecosystem.

It is one of the most diverse ecosystems in the Chicagoland area.