This fossil of a mammal biting a dinosaur captures a death battle’s final moments A 125-million-year-old fossil from the early Cretaceous shows the skeletons of a smaller mammal biting a larger horned dinosaur, suggesting a much more complex ancient food web. Read more on NPR

Trump says he received a letter saying he’s a target of DOJ’s Jan. 6 investigation The former president says he learned Sunday that he may be charged with a federal crime by a grand jury investigating the Capitol siege. A spokesman for special counsel Jack Smith declined to comment. Read more on NPR

U.S. man is detained in North Korea after crossing the border The man was touring the Demilitarized Zone that divides the Korean Peninsula when he crossed into North Korea without authorization, according to the United Nations Command. Read more on NPR

Up First briefing: Trump hearing; U.S-China climate talks; Taylor Swift breaks records A pretrial hearing takes place today in Trump’s classified documents case. U.S. climate envoy John Kerry is in China to revive climate change efforts. Taylor Swift breaks another Billboard record. Read more on NPR