Medical research

Scientists unlock evolutionary secret of blood vessels

The ability to form closed systems of blood vessels is one of the hallmarks of vertebrate development. Without it, humans would be closer to invertebrates (think mollusks) in design, where blood simply washes through an open ...

Psychology & Psychiatry

The many unexpected sides of romantic love

Love can bring out both the best and the worst in people. Which way it turns depends on the best way to protect the relationship, say researchers studying the evolution of romantic love.

Psychology & Psychiatry

Women become aggressive around sexual rivals

(Medical Xpress) -- New research conducted at McMaster University suggests women vying for male attention become aggressive towards other women they see as sexual rivals, a scene often played out in the media and popular ...

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