The Biden transition team is pushing back against President Trump’s latest rhetoric about the election, as President-elect Biden moves ahead with another round of Cabinet announcements expected in the days ahead. Nikole Killion reports from Rehoboth Beach, Delaware, where Mr. Biden is spending time with his family. Ed O’Keefe also discusses how this transition year is different from any other. Source

President Trump is now demanding that President-elect Joe Biden prove he actually won the election. While Mr. Trump and his campaign repeatedly insist the race was rigged, court ruling after court ruling has upheld the outcome. Ben Tracy reports after the Trump campaign suffered another legal setback, when three Republican-appointed judges offered a stinging rebuke to the campaign’s push to challenge the results in Pennsylvania. Source

Iran is accusing Israel and promising revenge for the ambush shooting death of a top scientist, who has been described as a key figure behind Iran’s nuclear bomb program almost 20 years ago. The attack happened Friday in a suburb of Tehran. Roxana Saberi reports. Source

What’s next with COVID-19? CBS News medical contributor Dr. David Agus takes a look at the surge of cases, the impact of the holidays and the latest with vaccines. Source

The U.S. saw more than 205,000 new coronavirus infections and 1,400 deaths Friday as the number of confirmed cases in the country soared past 13 million. Health experts, local and state officials are sending out warnings to people traveling and gathering for the holiday season. Michael George reports. Source

The U.S. shattered another coronavirus record as a surge of new cases shows no signs of slowing down. Also, Iran’s top nuclear scientist was killed in what their state media calls an assassination. All that and all that matters in today’s Eye Opener. Your world in 90 seconds. Source

Jane Pauley hosts this special primetime edition of “Sunday Morning,” celebrating America’s love of animals in all shapes and sizes. Featured are stories on presidential pets; the popularity of animal videos on the internet; an interview with actor Michael J. Fox about the bond he shares with his dog, Gus; how the family of “Crocodile Hunter” Steve Irwin is carrying on his life’s mission; a look at pets that resemble their owners; the practice of pet cloning; and the Smithsonian National Zoo’s latest star, the giant panda cub Xiao Qi Ji. Source

When the trumpet sounds at the opening of “CBS Sunday Morning” each week, many of our four-legged viewers join in. Source

Thanksgiving Day hospitalizations hit record high; How a 7-year-old won the battle to make female toy soldiers Source

A college student goes missing and a podcaster turns up the heat to solve the case. “48 Hours” tracks down the prime suspect. CBS News correspondent Jonathan Vigliotti reports Saturday, November 28 at 10:01/9:01c on CBS. Source