This is the winner of the Wildlife Photographer of the Year, showing the moment two lions gently touched their foreheads together, eyes closed, and paused

The tender and unusual moment was captured by London photographer David Lloyd who spotted the cats — brothers, most likely — in Tanzania in March 2015 and trained his camera.

The resulting image, "Bond of Brothers," won the Wildlife Photographer of the Year LUMIX People's Choice Award from London's Natural History Museum.

Speaking to USA Today, Lloyd said that he has always been drawn to the perceptive nature of animals that often goes overlooked.

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"The greet lasted a lot longer than the usual three or five seconds, it was almost half a minute of nuzzle and gentle head butt," he said.

"There was no doubt the high level of emotion, feeling, respect and dependability between these two for each other."

The photograph won out of 25 images compiled by the Natural History Museum as part of its 2018 competition, which received 45,000 submissions. 

"Lions are individuals with complex social bonds, and David’s winning picture provides a glimpse into their inner world," Michael Dixon, the museum's director, said in a statement.

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The Wildlife Photographer of the Year's people's choice award honors outstanding nature photography as decided by the public.

Last year's winner featured a gorilla saved from a bushmeat market, resting drowsily in the arms of the man who helped rescue her.