The unstable future of a world full of men

As the global population hits seven billion, experts are warning that skewed gender ratios could fuel the emergence of volatile "bachelor nations" driven by an aggressive competition for brides.

Turtle embryos play a role in determining their own sex

In certain turtle species, the temperature of the egg determines whether the offspring is female or male. But now, new research shows that the embryos have some say in their own sexual destiny: they can move around inside ...

Research shows entrepreneurial differences between the sexes

A study of the sexes reveals that when it comes to starting a business, women are more likely than men to consider individual responsibility and use business as a vehicle for social and environmental change.

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