Participants pass an egg using their mouths during a religious ritual as they play the role of traditional fighters in a parade during the Popo (Mask) Carnival of Bonoua, in the east of Abidjan, April 18, 2015. The carnival has its origins in the changes that Aboure youths in Bonoua introduced to the annual festival of yams. (Photo by Luc Gnago/Reuters)

These adorable cats – which are twins – showcase their contrasting blue and green eyes. The cats have a condition called heterochromia iridis, which causes each eye to vary in color. (Photo by @sis.twins/Caters News Agency)

Descending into the Marum Volcano in Vanuatu, Intrepid explorers found an unusual way of staying warm this winter by spending Christmas day on an active volcano. British climber Chris Horsley, 22, and his friends Gareth Hawken, 30, Geoff Mackley, 50, and Bradley Ambrose, 36, from Auckland, New Zealand, hiked up the Marum Volcano, Vanuatu, on the morning of the 25th. Instead of passing the day with their families, the team climbed down a 1200ft cliff to get close to a flowing lake of lava. (Photo by Bradley Ambrose/Caters News)

Going toe-to-toe, these fighting primates could give Floyd Mayweather a run for his money. The amazing images – captured by Australian tourist Julie Rathbone on the banks of the Zambezi river in Africa – show the pair engaging in a few fisticuffs. The Chacma baboons appeared to settle a disagreement by fighting – before a senior baboon plays referee and steps in to break it up. Nurse unit manager Julie Rathbone, 59, from New South Wales, was on a cruise down the river when she spotted the fracas unfolding. (Photo by Julie Rathbone/Caters News)

A man dresses as a Minion tries to convince a tourist to have her picture taken with him, in Times Square, in New York, April 7, 2016. The assortment of costumed characters, painted naked women and ticket sellers who make the streets of New York's Times Square their office, catering to tourists, may soon be restricted after a City Council vote Thursday. (Photo by Rickey Rogers/Reuters)

This perfectly-timed GoPro snap captures the moment an angrymagpiecame within inches of a biker, as swooping season takes hold in Australia. The notoriously aggressive bird can be seen flying with its wings tucked in so it looks exactly like a torpedo in the magnificent photograph from Middlemount, Queensland. Retail businesswoman Monique Newton, 53 was riding pillion with a friend when she spied the divebombing bird – but rather than speed off, they slowed down to capture it up close. (Photo by Monique Newton/Caters News Agency)

The deserts of Argentina take on a starring role in this photographer’s breathtaking Milky Way shots. Amateur snapper Gonzalo Javier Santile, 46, spent the last two years capturing these rare shots of the galaxy as it arced over deserts in Salta Cafayate, Cordoba Valle de Punilla, Provincia de Buenos Aires and the Rio Negro province. In his pictures, the Milky Way can be admired as it towers over canyons, cacti, bushes, and even small brooks and lakes. (Photo by Gonzalo Javier Santile/Caters News Agency)

This watering hole is the social hub of the veldt; the scrubby grasslands that stretch across Namibia. The scorched earth supports sometimes fragile populations of magnificent wildlife – from endangered predators to plentiful herds of game. But these gentle giraffes and elephants need to be careful: lions don’t sleep at night, they hunt! The spectacular starscape above southern Africa is unchanged since explorers first mapped the continent. The photographer, Pietro Olivetta from Italy, said he had to be patient to capture these shots – but it was worth the wait. (Photo by Pietro Olivetta/Caters News)