discrimination

Although it was born in the early 19th century, but you really know

The latest research by British scientists shows that African Gambian mosquitoes can identify and distinguish species from different regions through cries.

Research by scientists from Oxford University, England and University of Eotvos, Hungary, pigeons are also important

Not only was the first female doctor in the US military, Mary Edwards Walker also became the only woman to be awarded the Medal of Honor.

The patient's body weight really affects the feelings of the doctor, because they tend to think and act negatively when meeting overweight people.