Champ Biden, one of two German shepherds belonging to President Biden and his family has died, the president and first lady Jill Biden announced late Saturday morning. He was 13 years old.

"Our hearts are heavy today," Biden and first lady Jill Biden wrote in a statement, adding that the dog had died at their home.

The Bidens were at their home in Delaware.

MOSCOW — Catherine Serou, a 34-year-old U.S. citizen studying in Russia, has been found dead after she went missing on Tuesday, Russia's Investigative Committee said in a statement.

A man in his early 40s with past convictions, has been arrested and is cooperating with investigators, the committee said. His name was not released.

When it comes to raising resilient children, Jeff Nelligan knows more than a thing or two. He's raised three sons, dripping with hustle and composure. One of them is a senior at West Point, another graduated from the U.S. Naval Academy and the third from Williams College, where he played lacrosse. "I've raised three bad asses," Nelligan says bluntly (as he does often). "I hate to say it that way, but these kids have the ability to get over adversity, and that's resilience."

Lucio Arreola is going to have an astounding Father's Day this year. He finds just about every day astounding now.

Arreola has a new heart; or at least, new to him. He is 50 years old, the father of three daughters and a banking executive in Puerto Rico. On April 20, doctors at Houston Methodist Hospital performed a transplant to implant inside him the heart of a deceased 25-year-old man whose identity he may never know, but to whom he and his family will always be grateful.

It might be tempting to shrug at the scorching weather across large swaths of the West. This just in: It gets hot in the summer.

But this record-setting heat wave's remarkable power, size and unusually early appearance is giving meteorologists and climate experts yet more cause for concern about the routinization of extreme weather in an era of climate change.

These sprawling, persistent high-pressure zones popularly called "heat domes" are relatively common in later summer months. This current system is different.

1971. What a year.

We at NPR have a special soft spot for it because it's the year we were founded. We've been celebrating our 50th anniversary, and you can come join the party here, here, and here.