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 US soccer fan cheers during the FIFA World Cup 2014 group A preliminary round match between Brazil and Croatia at the FIFA Fan Fest in Copacabana, Rio de Janeiro, Brazil, 12 June 2014. Brazil won 3-1. The FIFA World Cup 2014 will take place in Brazil from 12 June to 13 July 2014. (Photo by Abedin Taherkenareh/EPA)

Israelis take cover as a siren sounds a warning of incoming rockets fired from the Gaza Strip, in Ashkelon, southern Israel, Sunday, May 16, 2021. (Photo by Heidi Levine/AP Photo)

A red squirrel sniffs out nuts inside Christmas stockings as part of the festive celebrations and enrichment programme at Wildwood Escot Park in Ottery St Mary, Devon, United Kingdom on December 17, 2020. (Photo by Ben Birchall/PA Images via Getty Images)

Festival goers enjoy Parklife festival at Heaton Park on June 09, 2019 in Manchester, England. The risky outfits are back on day two, but at least everyone's not covered in mud this time as the sun shines over Manchester. (Photo by BackGrid)

A female jaguar named Ti, by the NGO Jaguar ID, bites an alligator at Encontro das Aguas State Park, in the Pantanal, the largest wetland in the world, in Pocone, Mato Grosso, Brazil, on October 10, 2024. (Photo by Sergio Moraes/Reuters)

Chaps, flaneurs, dandies and dandizettes in their stylish outfits once again meet beside the statue of Beau Brummell on Jermyn Street for a relaxed stroll around St James', Piccadilly Arcade to Piccadilly Circus and Soho in London on May 11, 2025. The annual fun walk is organised by “The Chap” magazine. (Photo by Alamy Live News)

Swedish actress Alicia Vikander poses during a photocall for the film “Firebrand” at the 76th edition of the Cannes Film Festival in Cannes, southern France, on May 22, 2023. (Photo by Joel C. Ryan/Invision/AP Photo)