Married people who cheat don't regret it, finds study

Married people who have affairs find them highly satisfying, express little remorse and believe the cheating didn't hurt their otherwise healthy marriages, finds a new report on the psychology of infidelity.

How birds got their wings

Modern birds capable of flight all have a specialized wing structure called the propatagium without which they could not fly. The evolutionary origin of this structure has remained a mystery, but new research suggests it ...

How asexuals navigate romantic relationships

Though an estimated 1% of Americans identify as asexual—a sexual orientation most commonly defined as lacking sexual attraction—asexual people remain relatively invisible and are rarely researched. For these reasons, ...

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