Cause the Earth suddenly cooled 13,000 years ago

Cause the Earth suddenly cooled 13,000 years ago

Ancient sediments in the cave Hall, Texas, indicate that volcanic eruptions are most likely the cause of the Earth's sudden drop of 3 degrees Celsius about 13,000 years ago, Science Daily reported on July 31. This cooled Earth event is called Younger Dryas. Michael Waters, director of the Center for Native American Studies and professor at Texas A&M University, and colleagues from Baylor University and University of Houston publish new research in the journal Science Advances.

Why are mice always selected in experiments?

Why are mice always selected in experiments?

In a series of scientific research experiments, from drug trials, vaccines ... mice were always selected. Why so? (Department) Good question, in terms of research in Medicine in general, before a drug is tested or used on humans, we need to have complete records of the effectiveness and safety of the drug. To test the effectiveness and toxicity of drugs or vaccines we need to test on animal models first. The mouse is not the only model but the most popular / used model in laboratories in the world because it is a good reconciliation model between two key elements: Biological simulation, Budget. and Ethics:



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