Titanoboa, meaning "titanic boa," is an extinct genus of snake that lived approximately 60–58 million years ago, during the Paleocene epoch, a 10-million-year period immediately following the dinosaur extinction event. The only known species is Titanoboa cerrejonensis, the largest, longest, and heaviest snake ever discovered, which supplanted the previous record holder, Gigantophis.

A full-scale model of the snake was unveiled at New York City's Grand Central station before the exhibit opens at the Smithsonian in Washington DC.

A handout picture taken and released by the British Ministry of Defence (MOD) on March 25, 2024 shows humanitarian aid being airdropped over Gaza from a RAF A400M aircraft The Royal Air Force airdropped over 10 tonnes of food supplies into Gaza for the first time on Monday, as part of international efforts to provide life-saving assistance to civilians. The aid consists of water, rice, cooking oil, flour, tinned goods and baby formula. (Photo by Leah Jones/MOD/AFP Photo)

An Indigenous woman smokes during a protest demanding a better health care system be made available in her region, including the hiring of more doctors and nurses as well as the building of more clinics, outside the Ministry of Health in Brasilia, Brazil, Wednesday, February 8, 2023. (Photo by Gustavo Moreno/AP Photo)

A firefighter rests next to fire combat truck during a wildfire at Penela, Coimbra, central Portugal, on June 18, 2017. A wildfire in central Portugal killed at least 25 people and injured 16 others, most of them burning to death in their cars, the government said on June 18, 2017. Several hundred firefighters and 160 vehicles were dispatched late on June 17 to tackle the blaze, which broke out in the afternoon in the municipality of Pedrogao Grande before spreading fast across several fronts. (Photo by Patricia De Melo Moreira/AFP Photo)

Death Muammar Muhammad Abu Minyar al-Gaddafi (7 June 1942 – 20 October 2011) in Misrata on October 20, 2011. The veteran strongman was killed on as new regime forces crushed the last pocket of resistance in his hometown Sirte, the National Transitional Council said. (Photo credit should read MAHMUD TURKIA)

A fan of England cheers prior to the UEFA EURO 2020 quarter final match between Ukraine and England in Rome, Italy, 03 July 2021. (Photo by Mike Hewitt /EPA/EFE)

A couple embraces at the railway station in Kramatorsk, on May 20, 2023, amid the Russian invasion of Ukraine. (Photo by Sergey Shestak/AFP Photo)

A playground burns in a residential neighbourhood during the Eaton fire in Pasadena on January 7, 2025. (Photo by Josh Edelson/AFP Photo)