A participant prepares for the Red Bull Air Race World Championships in Abu Dhabi, United Arab Emirates on February 6, 2017. (Photo by Red Bull Content Pool/SIPA Press/Rex Features/Shutterstock)

“Cassowaries are large, flightless birds related to emus and (more distantly) to ostriches, rheas, and kiwis”, writes Olivia Judson in the September issue of National Geographic magazine. How large? People-size: Adult males stand well over five foot five and top 110 pounds. Females are even taller, and can weigh more than 160 pounds. Dangerous when roused, they’re shy and peaceable when left alone. But even birds this big and tough are prey to habitat loss. The dense New Guinea and Australia rain forests where they live have dwindled. Today cassowaries might number 1,500 to 2,000. And because they help shape those same forests – by moving seeds from one place to another – “if they vanish”, Judson writes, “the structure of the forest would gradually change” too. (Photo by Christian Ziegler/National Geographic)

Dakar Rally, 2017 Paraguay-Bolivia-Argentina Dakar rally, 39th Dakar Edition, First stage from Asuncion, Paraguay to Resistencia, Argentina on January 2, 2017. Adrien Metge of France pushes his Sherco. (Photo by Ricardo Moraes/Reuters)

People wearing costumes walk during Halloween in Sierra Madre, California, U.S., October 31, 2017. (Photo by Mario Anzuoni/Reuters)

British singer and songwriter Ella Eyre performing on stage at Capital's Summertime Ball 2022 at Wembley Stadium in London, United Kingdom on June 12, 2022. (Photo by David Fisher/Rex Features/Shutterstock)

English actress Florence Pugh attends the “Don't Worry Darling” red carpet at the 79th Venice International Film Festival on September 05, 2022 in Venice, Italy. (Photo by Vittorio Zunino Celotto/Getty Images)

American actress and singer Vanessa Hudgens in the first decade of December 2022 decks herself out in Michael Kors. (Photo by vanessahudgens/Instagram)

Toyota's driver Nasser Al-Attiyah of Qatar (R) and his co-driver Mathieu Baumel of France compete during the prologue of the Dakar 2023 by the Red Sea in Yanbu, Saudi Arabia, on December 31, 2022. Swedish driver Mattias Ekstrom and his co-driver Emil Bergkvist of Sweden won the prologue ahead of French driver Sebastien Loeb and Belgian co-driver Fabian Lurquin. (Photo by Franck Fife/AFP Photo)