Geography Facts about the World’s Continents
How many continents are there? Explore the four to seven continent models and compare the world’s continents by size, population, and geography.
GIS Learning
Introduction to GIS
Environmental Geography
Midpen Open Space and the Harm of Repeat Disturbance
Biogeography
What are Those Clumps in Trees?
Biogeography
Crown Shyness: When Trees Need Personal Space
GIS Learning
Introduction to GIS
Why Do Squirrels Lie Flat?
Splooting helps squirrels lie flat to regulate body temperature, avoid predators, sunbathe, and rest. Explore the science behind this behavior.
Greatest Concentration of Breeding Bald Eagles in the Contiguous United States
The San Juan Islands support one of the highest densities of breeding bald eagles in the contiguous United States. Here’s why.
How Remote Sensing Helps NOAA Monitor El Niño
Learn how satellites measure ocean temperatures, sea surface height, and other indicators used to monitor El Niño.
Tracing Medieval Rewilding Through Italy’s Ancient Oaks
A study of ancient oak trees reveals how changes in human land use allowed forests to expand across parts of Italy during the medieval period.
Midpen Open Space and the Harm of Repeat Disturbance
At Bear Creek Redwoods Open Space Preserve, repeated nesting season projects by Midpeninsula Regional Open Space District are altering habitat used by migratory birds.
Types of Agricultural Patterns Visible from Space
Agricultural landscapes, when viewed from space, reveal distinct patterns shaped by historical practices, local geography, and technological influences.
What are the Earth System’s Four Spheres?
The systems of the earth can be divided into two main areas: geosphere and biosphere.