Learning from the Fossil Record
Learning from the FOSSIL RECORD: The fossil record is one of the most important tools used by biologists to evaluate the evolutionary development of life on earth
Dioxin causes disease and reproductive problems across generations, study finds
Since the 1960s, when the defoliant Agent Orange was widely used in Vietnam, military, industry and environmental groups have debated the toxicity of its main ingredient, the chemical dioxin, and how it should be regulated. But even if all the dioxin were eliminated from the planet, researchers say its legacy will live on in the way it turns genes on and off in the descendants of people exposed over the past half century.
Genetic mutation may have allowed early humans to migrate throughout Africa
A genetic mutation that occurred thousands of years ago might be the answer to how early humans were able to move from central Africa and across the continent in what has been called "the great expansion," according to new research.
Richard Dawkins demonstrates laryngeal nerve of the giraffe
(C)Channel4From "Inside Nature's giants"http://www.channel4.com/programmes/inside-natures-giants/4od#3072424Richard Dawkins demonstrates laryngeal nerve of t...
Wildscreen Arkive - the ultimate multimedia guide to the world's endangered species. Includes endangered species videos, photos, facts & education resources.