Long-Term Studies

... animals and the world around them. Ecology also provides information about the benefits of ecosystems and how we can use Earth's resources in ways that ... TEDs are a grid of bars with an opening either at the top or the bottom of the trawl net. The grid is fitted into the neck of a shrimp trawl. Small animals such ... But, the main causes of their decline are changes in habitat as a result of land clearing and fire. Fire plays a large role in their survival. In the dry season ... More than half of the world's diet of fats and oils come from animal-pollinated plants (oil palm, canola, sunflowers, etc.). More than 150 food crops in the ... Information about educational materials for classroom use. grant ... Visit the many historic sites from the "Land of Lincoln" to an ancient city at "Cahokia ... NCEI maintains one of the most significant archives on Earth, with comprehensive oceanic, atmospheric, and geophysical data. ... Return to top. National ... Industry-leading educational content, digital-first curriculum, personalized learning programs, and time-saving instructional tools enhance teaching and ... Jan 8, 2025 ... As animal density (i.e., number of animals per unit of land ... animals into the United States, visit animal and animal product import information ... Jan 16, 2024 ... They are at risk of habitat loss due to natural and man-made fires. Climate change is also leading to a decrease in prey availability. 2. Rhino. May 21, 2016 ... In celebration of World Biodiversity Day, below is a look at the world's ten most biodiverse countries as measured by species richness.