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Wood first appeared in plants called progymnosperms.
Some male birds and mammals congregate in communal courting grounds called leks.
Brain scans showing the white-matter pathways involved in everyday learning:
Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia
Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers
With the research technique called brainbow, each neuron is labeled with a different color, ...