A former US Ambassador to Saudi Arabia just warned Trump against accepting Saudi denials regarding the disappearance of Jamal Khashoggi. "Let's remember, this is the same King Salman who told me after 9/11 that the 9/11 attacks were an Israeli plot.".
Early life forms on Earth may have been able to generate metabolic energy from sunlight using a purple-pigmented molecule called retinal that possibly predates the evolution of chlorophyll and photosynthesis. As a consequence, early Earth may have looked purple.
A formula used to calculate basic wood density has recently been corrected. Basic density is widely used to compute carbon storage by trees. Researchers estimate that the error in the initial formula resulted in an overestimation of forest carbon stocks, to the tune of almost 5%..
Since the reintroduction of wolves to Yellowstone National Park in 1995, the park's ecosystem has become a deeply complex and heterogeneous system, aided by a strategy of minimal human intervention. The new study is a synthesis of 40 years of research on large mammals in Yellowstone National Park..
