Search results
Results from the WOW.Com Content Network
The Texas Blackland Prairies are a temperate grassland ecoregion located in Texas that runs roughly 300 miles (480 km) from the Red River in North Texas to San Antonio in the south. The prairie was named after its rich, dark soil. [3] Less than 1% of the original Blackland prairie vegetation remains, scattered across Texas in parcels. [4]
William Hemsley Emory (September 7, 1811 – December 1, 1887) was a prominent American surveyor and civil engineer of the 19th century. As an officer in the U.S. Army Corps of Topographical Engineers he specialized in mapping the United States border, including the Texas–Mexico border, and the Gadsden Purchase border, 1844–1855, and published lasting scientific reports on the border region.
It's one of the world's most successful implementations of integrated pest management. The program has enabled cotton farmers to reduce their use of pesticides by between 40-100%, and increase their yields by at least 10%, since its inception in the 1970s.
The control of fire by early humans was a critical technology enabling the evolution of humans. Fire provided a source of warmth and lighting, protection from predators (especially at night), a way to create more advanced hunting tools, and a method for cooking food.
Pygmy hunter-gatherers in the Congo Basin in August 2014. A hunter-gatherer or forager is a human living in a community, or according to an ancestrally derived lifestyle, in which most or all food is obtained by foraging, [1] [2] that is, by gathering food from local naturally occurring sources, especially wild edible plants but also insects, fungi, honey, bird eggs, or anything safe to eat ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Food and biological process engineering is a discipline concerned with applying principles of engineering to the fields of food production and distribution and biology. It is a broad field, with workers fulfilling a variety of roles ranging from design of food processing equipment to genetic modification of organisms.
Huffaker’s experimental universes showed that while under many circumstances predator–prey interactions will lead to extinction of both populations, interactions of spatial heterogeneity, dispersal ability of predator and prey species, and distribution of food sources can create an environment in which predator and prey species can coexist.