Models present creations by Portuguese fashion designer Ines Torcato during the Portugal Fashion show in Porto, Portugal, 14 October 2021. Spring/Summer 2022 collections are presented at the 49th Portugal Fashion until 16 October 2021. (Photo by Jose Coelho/EPA/EFE)

Members of the Australian Jewish community participate in a gathering called ‘Balloons of Hope’, which represents Israeli hostages who are currently being held by the Palestinian group Hamas, in Sydney on October 27, 2023. Thousands of civilians, both Palestinians and Israelis, have died since October 7, 2023, after Palestinian Hamas militants based in the Gaza Strip entered southern Israel in an unprecedented attack triggering a war declared by Israel on Hamas with retaliatory bombings on Gaza. (Photo by David Gray/AFP Photo)

A man stands on a mountain summit as he looks over the Inntal valley in the western Austrian village of Gnadenwald, Austria on July 18, 2017. (Photo by Dominic Ebenbichler/Reuters)

They say a picture is worth a thousand words, and these striking images of 2017 are no exception. The photo highlights include incredible snapshots of the natural world as well as some awesome animal and human encounters. The vibrant gallery also shows thrill-seekers pushing themselves to the limit with breathtaking stunts captured in perfect clarity. The pictures have been taken by a host of photographers from around the world. Here: The two lion cubs singing their hearts out at Antelope park in Zimbabwe. (Photo by David Jenkins/Caters News Agency)

“Red Arrows” at the 2016 royal air tattoo, RAF Fairford, UK. By Jonny Williams, finalist: action. (Photo by Jonny Williams/UK National Geographic Traveller Photography Competition 2018)

Melissa Stewart's team competes in the official restart of the Iditarod, a nearly 1,000 mile (1,610 km) sled dog race across the Alaskan wilderness, in Fairbanks, Alaska, U.S. March 6, 2017. (Photo by Nathaniel Wilder/Reuters)

Vietnam’s Son Doong cave, the largest in the world, could hold a 40-story skyscraper inside. The pristine ecosystem has its own river and jungle. Despite its size, Son Doong wasn’t discovered until 1991. It was lost again for nearly two decades and was fully explored for the first time in 2009. (Photo by Jason Speth/HuffPost)

Gray whale feeding at the surface and showing it's baleen. (Photo by Christopher Swann/Biosphoto)