Feature

This week I learned that dogs can smell happiness, and more

Surprising discoveries and fascinating studies from around the web

Following the scent of happiness.

iStock

Read more about the facts mentioned:

Yes, dogs really can smell fear (and happiness) (Discover)
Turns out bees can be right- or left-handed, just like humans (Science Alert)
Chopin's heart, pickled in a jar, offers clues to his death (The New York Times)
In medieval times, people would pay sin eaters to carry their sins (ZME Science)

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