Story perspectives

Dinosaurs: Earth's Original Ecosystem Engineers Reshaping Landscapes

9/22/2025

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Summary

Story summary

A University of Michigan study shows that dinosaurs significantly influenced Earth's landscapes, especially river formations, before their extinction 66 million years ago.
Researchers describe dinosaurs as "ecosystem engineers," preventing dense forests and causing frequent flooding.
A sedimentary shift at the Cretaceous-Paleogene (K-Pg) boundary correlates with the extinction of non-avian dinosaurs.
After their extinction, forests thrived, stabilizing sediments and reshaping rivers into broad meanders.
These findings indicate that life can impact climate and landscape, challenging traditional views on environmental change.

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Story summary

A University of Michigan study shows that dinosaurs significantly influenced Earth's landscapes, especially river formations, before their extinction 66 million years ago.
Researchers describe dinosaurs as "ecosystem engineers," preventing dense forests and causing frequent flooding.
A sedimentary shift at the Cretaceous-Paleogene (K-Pg) boundary correlates with the extinction of non-avian dinosaurs.
After their extinction, forests thrived, stabilizing sediments and reshaping rivers into broad meanders.
These findings indicate that life can impact climate and landscape, challenging traditional views on environmental change.