MS-LS1-5
Construct a scientific explanation based on evidence for how environmental and genetic factors influence the growth of organisms.
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Health & Medicine
Gut Instinct
New mouse study reveals a connection between intestinal bacteria and behavior.
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Climate
Arctic algae show climate change
Sediment from Arctic lakes shows that much of the Northern Hemisphere has been warming for many decades.
By Emily Sohn -
Earth
Ancient heights
Leaf fossils can help track the rise and fall of mountain ranges.
By Emily Sohn -
Health & Medicine
Building a food pyramid
Experts are trying to work out new rules on which foods to eat and which ones to avoid.
By Emily Sohn -
Fossils
A really big (but extinct) rodent
A rodent about the size of a bison once roamed the riverbanks of ancient Venezuela.
By Emily Sohn