When did humans get to South America? This giant shelled mammal fossil may hold clues A fossil of an armadillo-like mammal appears to bear cut marks from butchering by humans, suggesting people were living in South America at least 20,000 years ago, even earlier than once thought. Read more on NPR

Democrats hope a younger presidential candidate will attract younger voters Does a younger Democratic presidential candidate have the potential to energize younger voters? NPR’s A Martinez talks to Santiago Mayer, the executive director of Voters of Tomorrow. Read more on NPR

Bodycam video released of deputy fatally shooting a woman who called 911 for help Murder charges have been filed against a fired Illinois deputy sheriff who fatally shot a woman who had called 911 for help. A video tape of the shooting in Springfield was released Monday. Read more on NPR

U.S. ambassador Linda Thomas-Greenfield announces $60 million in aid to Haiti The U.S. ambassador to the U.N. announces additional aid to Haiti on a lightning visit to the troubled Caribbean island. Read more on NPR

The head of the UNHCR says it’s time to think about the future of Ukrainian refugees The U.N. High Commissioner for Refugees has pledged $100 million of support for people in Ukraine as they prepare for winter. Read more on NPR

The Democratic Party has quickly united behind Kamala Harris’ bid for the presidency Vice President Harris paid tribute to President Biden, then went to campaign headquarters to rally staff on Day 1 of her push to cement her place at the top of the Democratic ticket. Read more on NPR

JD Vance returned to Ohio to kick off next phase of GOP presidential campaign Republican vice presidential nominee JD Vance held a rally in Middletown, his hometown, as the party tries to pivot from a campaign tailored to take on President Biden, who dropped out of the race. Read more on NPR

Tens of thousands of Black women mobilize to support Kamala Harris NPR’s Michel Martin talks to Washington, D.C., Mayor Muriel Bowser about why she is part of a group of women supporting Vice President Kamala Harris for the presidential nomination. Read more on NPR

Scientists are tracking polar bears to keep them — and people safe In Canada, melting sea ice is forcing polar bears closer and closer to human populations, so scientists there are working on a program to track polar bears, tag them with GPS units and monitor their movement. Read more on NPR

Kimberly Cheatle faced House lawmakers about security lapses by Secret Service The Secret Service director was on Capitol Hill Monday. For nearly five hours, she faced questions from House lawmakers demanding answers about the attempted assassination of former President Trump. Read more on NPR