At first glance, this 'two-headed giraffe' could be mistaken for a mythological creature.

But the photograph is just an optical illusion, making it look like a pair of giraffes share the same body.

The mock fighting animals used their gangling limbs to butt and hit each other in the Serengeti National Park in Tanzania. 

In the photograph, one giraffe's head is leaning forward, while the other is bending over its back. 

Photographer Mohammed Alnaser took the picture at an angle where the two animals' legs are completely lined up, making it seem like they share a body.   

The 38-year-old investment banker from Riyadh, Saudi Arabia, said: 'Because of the movement of their necks I knew that would create some kind of interesting photos for me. 

'One of the pictures looks like they have one body and two necks and heads.

'Lots of people who have viewed the photo have said that to me. 

'When you look at it you have to look again and pay closer attention to the detail of the photo. It is an optical illusion.

'I can see why people find it funny.' The photographer also took pictures of the giraffes knocking each other in a mock fight.  

He 'Giraffes are very difficult to try and get pictures of, as they do not do a lot things and often can just be grazing or moving slowly.

'So when I saw these two I kept taking a lot of photos. 

'They look like they were fighting but they weren't actually properly fighting, they were just mock fighting and playing. 

'The other photo looks like the giraffe is trying to photobomb his friend. That one is interesting too.

'Normally it is hard to get photos of giraffes doing anything so unusual so I was really pleased. They were not fully grown, they were younger, but I am not sure if they were male or female.'

Mohammed has been interested in photography for the last 14 years and began snapping animals and wildlife eight years ago.

He has visited Africa numerous times to take pictures, making trips to the Sabi Sand Private Game Reserve in South Africa and the Masai Mara National Park in Kenya.

But he was on his first visit to the Serengeti when he spotted the bizarre two-headed giraffe.

Mohammed said: 'I am a regular in Africa but this was my first time at the Serengeti National Park.

'I love photography in general, but I relate most to wildlife and animals.'