
Why do we stick out our tongues when we're concentrating?
Researchers have several ideas as to why people sometimes stick out their tongues when they're concentrating.
Reference Ötzi the Iceman, a 5,300-year-old man whose mummified remains were dug out of an Italian glacier in the Alps, has fascinated the public since his discovery in 1991.
Reference Fascism is a political ideology usually characterized by authoritarianism and nationalism. However, many scholars say the concept is difficult to define.
Reference The term transgender describes people whose gender identity differs from the sex to which they were assigned at birth.