The photograph was taken using a camera trap, which triggers when a tiger walks by.
Kensington Palace released a video of the Duchess of Cambridge, who is Patron of the Natural History Museum, filmed in the Museum's iconic Hintze Hall.
"It's a scene like no other".
"Shafts of low winter sun highlight the ancient fir tree and the coat of the huge tigress as she grips the trunk in obvious ecstasy and inhales the scent of tiger on resin, leaving her own mark as her message". Hunted nearly to extinction in the past century, the population is still threatened by poaching and logging, which also impact their prey-mostly deer and wild boar. The rangers later identified the animal as tigress number T41F by her unique stripe pattern.
"Harnessing the uniquely emotive and impactful power of photography, Wildlife Photographer of the Year works in partnership with the photographic community to inspire millions of people around the world each year to think differently about their relationship with nature and become advocates for the planet", a statement about the competition reads.
Russian photographer Sergey Gorshkov has claimed the top prize in this year's Wildlife Photographer of the Year competition with his photo of an Amur tiger, the British Natural History Museum announced Wednesday.
"I'm delighted to be announcing the Grand Title victor of the fifty-sixth Wildlife Photographer of the Year competition", Kate, who wore a tailored black pantsuit from her wedding dress designer Alexander McQueen, said. "A great natural history moment captured perfectly".