Christina Cala

Kanye West has been rapping about God from early in his career, hearkening back to one of his first hits, "Jesus Walks" off his debut album, 2004's The College Dropout.

One young woman is walking to find work so she can send money back to Venezuela for a nephew who has leukemia.

Another is traveling with four of her five kids, in search of food for her family.

As another family hikes along, the husband walks ahead to hide his tears from his children.

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AILSA CHANG, HOST:

The busiest section of the U.S.-Mexico border is the Rio Grande Valley. It's not unusual for Border Patrol agents to catch more than 500 immigrants a day trying to cross into the U.S. along this 55-mile stretch. In spite of increased border security and rising costs to cross, migrants are still determined to make the journey.

NPR recently spent time on both sides of the border, where immigration is part of everyday life.

Fiona the hippo may be one of the greatest living social media stars of the decade, but in terms of those who aren't living, look no further than Sue the Tyrannosaurus rex.

Though she's a fossil, Sue is a true Chicagoan and has been on display in her home at The Field Museum since 2000.

Like many of us these days, Sue is sassy and shares her hot takes on Twitter with adoring fans.

As Sue comes off her mount, the skeleton crew uses Allen wrenches to take each piece apart, the same tools you might use on IKEA furniture.