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Latest Challenge hypothesis Stories

2013-12-12 23:01:18

Reasons for low testosterone and basic tips on how to increase testosterone levels naturally are revealed.

Competitive Testosterone: How Humans Evolved To Form Coalitions
2013-05-15 05:49:21

A new study, led by the University of Missouri, has found that testosterone levels during group competition vary depending on the relationships of the competitors. These hormones levels may be related to the formation of alliance in warfare.

Solo Song Of Tropical Birds Regulated By Testosterone
2012-10-31 15:38:25

In male songbirds of the temperate zone, the concentration of sex hormones is rising in spring, which leads to an increase in song activity during the breeding season.


Word of the Day
ultimo
  • In the month which preceded the present; in the last month, as distinguished from the current or present month and all others.
  • In the month which preceded the present; in the last month, as distinguished from the current or present month and all others.
The word 'ultimo' comes from the Latin phrase 'ultimo mense', 'in the last month'.
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