This map shows which ethnicities have the largest ancestry in U.S. counties.

America is supposed to be a melting pot, and this map based on Census data shows the diversity of our country. How do you think the map will change in the coming decades?

You may have noticed "American" as an ancestry in the key. Turns out, some people self-report their ethnicity that way — maybe because they're not sure of their heritage.

Ready for the weekend? Of course, you are. Here's our weekly dose of good vibes to help you shed the stresses of the workweek and put yourself in a great frame of mind.

These 10 stories made us happy this week because they feature amazing creativity, generosity, and one super-cute fish.

1. Diver befriends a fish with the cutest smile

Hawaiian underwater photographer Yuki Nakano befriended a friendly porcupine fish and now they hang out regularly.

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