What's Hot This Week How to Tell If Your Partner Is Cheating by Jennifer Welsh Next time you are talking with a potential mate, listen up and you might just hear their cheating heart. Researchers have discovered that people can tell how likely a person of the opposite sex is to be a cheater, just by listening to their voice.     Humans on Verge of Causing 6th Great Mass Extinction by Stephanie Pappas Are humans causing a mass extinction on the magnitude of the one that killed the dinosaurs? The answer is yes, according to a new analysis - but we still have some time to stop it.     Sponsored by: Image Album: Borneo's Quirky Species Q&A: Is It Okay to Put Human Bodies on Display? Infographic: Bugs Love the Way You Sweat Criminal Minds Are Different From Yours 7 Diet Tricks That Really Work

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