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  • illustration of three people biking in a city park
    People visit parks to do many different activities, such as play basketball, baseball, sunbathe, swim, walk, picnic, or go bicycling.…
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    Social Groupies: How Different Groups Use Urban Parks

  • The article cover for Social Groupies in Spanish
    People visit parks to do many different activities, such as play basketball, baseball, sunbathe, swim, walk, picnic, or go bicycling.…
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    Social Groupies: How Different Groups Use Urban Parks (Spanish)

  • A black and white drawing of a group of people standing with farm animals in a field at the edge of a town.
    Guanica Forest is a tropical dry forest in the southwest corner of Puerto Rico. In 1981, the United Nations recognized it for being one of…
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    Some Things Will Always Change: Land Use in a Dry Tropical Forest

  • A black and white drawing of a group of people standing with farm animals in a field at the edge of a town.
    Guanica Forest is a tropical dry forest in the southwest corner of Puerto Rico. In 1981, the United Nations recognized it for being one of…
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    Some Things Will Always Change: Land Use in a Dry Tropical Forest (Spanish)

  • The cover of "Speak-a-logical: Defining and Measuring the Ecological Value of Wilderness" featuring an illustration of a deer, chipmunk, and snake on the side of a road in a forest.
    When a society decides to set aside areas of land as wilderness, it makes a choice about the value of…
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    Speak-o-logical: Defining and Measuring the Ecological Value of Wilderness

  • PDF preview of SPLAT article
    Mountain pine beetles are a natural part of the environment in forests of the Western United States. However, because of…
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    SPLAT! Protecting Pine Trees in the Western United States from Beetle Attack

  • Black and white image of germinating spores.
    Fungi are very distinct among the plant and animal kingdoms. They are neither plant nor animal. Since they do not contain chlorophyll,…
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    Spores Galore! A Look into the World of Fungi & How They Reproduce

  • PDF preview of the Spanish version of "Spores Galore!"
    Fungi are very distinct among the plant and animal kingdoms. They are neither plant nor animal. Since they do not contain chlorophyll,…
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    Spores Galore! A Look into the World of Fungi & How They Reproduce (Spanish)

  • PDF preview of "Standing on the Shoulders of Giants" article
    To ensure that big-leaf mahogany harvesting is sustainable, scientists and land managers must know the conditions in which mahogany grows.…
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    Standing On the Shoulders of Giants: How Well Do Big-Leaf Mahogany Trees Grow in Different Conditions?

  • Birds and a nest being displaced by deforestation
    The scientists in this study were asked to identify which areas of forest and rangeland in the United States might become more stressed in…
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    Stress Test: The Condition and Possible Future of Forests and Rangelands in the United States

  • Birds and a nest being displaced by deforestation
    The scientists in this study were asked to identify which areas of forest and rangeland in the United States might become more stressed in…
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    Stress Test: The Condition and Possible Future of Forests and Rangelands in the United States (Spanish)

  • Cover illustration for Swimming Upstream. Includes shrimp in water.
    Tropical streams provide many benefits to people and animals. For river shrimp that spend part of their life in the…
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    Swimming Upstream Without a Ladder: Dams and Pipes and River Shrimp Movements