Shortcut Navigation:

Grades 9-12

900a

Article, Online Resource

James Hutton: The Founder of Modern Geology

Until the late 18th century, most people believed the Earth was about 6,000 years old. Hutton changed this belief by proposing that geologic forces operate at the same rate today as in the past.

901a

Article, Online Resource

Inge Lehmann: Discoverer of the Earth's Inner Core

Each one of the thousands of earthquakes that occur every year offers a brief glimpse of what's happening deep inside the Earth. Lehmann used seismic signals to change our knowledge of the Earth's core.

how-to-calculate-biodiversity-index_thumb

Article

How to Calculate a Biodiversity Index

One is the riskiest number... A more diverse plant population has a better chance of adapting to changes in the environment. Learn how to quantify the biodiversity of any area.

480x270c

Science Bulletin

The Last Wild Horse: The Return of Takhi to Mongolia

This feature depicts the emotional reintroduction of Takhi to their last known home range in Mongolia's Gobi desert. The Takhi, also known as Przewalski's horse, is the last surviving horse species that has never been domesticated. An important national symbol for Mongolians, the Takhi also serves as an important case study for conservation biologists who struggle to support the viability of thousands of species on the verge of extinction.

Charlotte-Hoover

Young Naturalist Awards Essay

Aquarium: An Ecosystem in Miniature

In a 29-gallon fish tank, this ninth-grader from Virginia created a tropical freshwater ecosystem—and then watched how fish that could never meet in nature interacted. A 2003 Young Naturalist Award-winning essay.

SELECT PAGE

American Museum of Natural History

Central Park West at 79th Street
New York, NY 10024-5192
Phone: 212-769-5100

Open daily from 10 am - 5:45 pm
except on Thanksgiving and Christmas
Maps and Directions

Enlighten Your Inbox

Stay informed about Museum news and research, events, and more!