5,518 results
5,518 results for: Forests
- Math
A Grove of Evolutionary Trees
"Trees of life" show patterns of evolutionary descent, and they fit together mathematically to form an abstract forest.
- Animals
Crowcam: Camera on bird’s tail captures bird ingenuity
Video cameras attached to tropical crows record the birds' use of plant stems as tools to dig out food.
- Health & Medicine
Meningitis vaccine stops ear infections
A vaccine for meningitis and pneumonia also prevents many childhood ear infections and the complications that they cause.
- Humans
From the July 31, 1937, issue
Giant dragonflies from the Carboniferous period, a dust cloud obscuring stars near the sky's north pole, and a list of 13 inventions predicted to have great social significance.
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Rethinking Bad Taste
Many animals use mimicry to gain a competitive advantage, but are there degrees of cheating?
- Plants
Stalking the Green Meat Eaters
Pitcher plants in a New England bog hold little ecosystems in their leaves, and also act as indicators of the bog's ecological health.
- Ecosystems
Forest Field Trip
Take a hike in the woods of Kentucky in this electronic field trip. The site offers an overview of forest ecology and management for grades 4 to 8. It includes video clips, an interactive game, a slideshow about the American chestnut, information about forest careers and tree products, activity pages, and a teacher’s guide. Go […]
- Math
Beating the Bush for Patterns
Across some arid landscapes, sparse vegetation grows in fractal patterns that hold clues to its resilience.
- Earth
Mercury Rising: Natural wildfires release pollutant
Fires in high-latitude forests and peaty soils of the Northern Hemisphere may loft hundreds of tons of mercury into the atmosphere each year.
- Paleontology
Mammals started flying when birds did
The first gliding mammal winged through forests at least 70 million years earlier than scientists had previously presumed, a new fossil shows. The specimen dates from about 150 million years ago, during the time when birds were developing flight. ANCIENT GLIDER. Volaticotherium antiquus was gliding through ancient forests 150 million years ago. The creature weighed […]
- Humans
From the June 19, 1937, issue
Raindrop disruption as the cause of lightning, phonograph recordings of the language of wild gibbons, and a possible connection between jaundice and arthritis.
- Humans
Two-fifths of Amazonian forest is at risk
The Amazon basin's forest may lose 2.1 million square kilometers by 2050 if current development trends go unabated.
