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Several species of parrots in Southeastern Peru regularly gather at a cliff face in the Amazon basin to eat clay. So do other animals, including humans.

Georgia State says it's saved students $12 million in tuition because they're graduating faster, thanks to its new high-tech advising system.

The paper, published in Science, suggested conversations could increase support for same-sex marriage. Researchers who tried to replicate the study say the data were not collected as described.

The team from Gambia was denied visas when they first applied. "Having no hope to come, we still worked," says team captain Alieu Bah.

By zooming inside individual neurons from different brain regions, scientists found diversity in how different cells transcribe their DNA.

Lee wrote dozens of books, including Don't Bite The Sun and Death's Master -- the latter of which was part of her popular Flat Earth series. She was 67.

Math is a universal language. But for English learners, math textbooks and standardized tests aren't so universal. San Diego educators are working to remove language barriers so students who haven't mastered English can still advance in math.

Airs Tuesday, May 17, 2016 at 8 p.m. on KPBS TV

Some African countries have long witnessed mysterious outbreaks of paralysis. Affected regions are poor and conflict-ridden, where people's main food is a bitter, poisonous variety of cassava.

President Donald Trump is expected to decide Tuesday whether to continue DACA, or Deferred Action for Childhood Arrivals. The program granted deportation relief to some 800,000 people who were brought to the country illegally as children.