A camel trader wearing a traditional headgear tries to push back his camels at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL TPX IMAGES OF THE DAY)

Camel traders wearing traditional headgears stand next to their camels at the Pushkar Fair in the Indian desert state of Rajasthan November 10, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

A trader herds his camels at Pushkar Fair in the desert Indian state of Rajasthan November 8, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

A camel trader wearing traditional headgear looks on as he stands with his camels at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

Camel traders run with their camels at the Pushkar Fair in the Indian desert state of Rajasthan November 10, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

Camel traders wearing traditional headgear try to control a camel after attaching a nose ring on it at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

A camel trader (C) wearing his traditional headgear signals to other traders to follow a new track as they arrive with their camels at the Pushkar Fair in the Indian desert state of Rajasthan November 10, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL TPX IMAGES OF THE DAY)

A group of camel traders warms themselves by a fire near a herd of camels early morning at the Pushkar Fair in the Indian desert state of Rajasthan November 10, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

Camel traders wait to take their meals at Pushkar Fair in the desert Indian state of Rajasthan November 8, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL ANNIVERSARY TPX IMAGES OF THE DAY)

A camel trader is covered in quilt to keep himself warm early morning at the Pushkar Fair in the Indian desert state of Rajasthan November 10, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY TRAVEL)

Camel traders wearing traditional headdress smoke near their camels early morning at the Pushkar Fair in the Indian desert state of Rajasthan November 10, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

A camel trader wearing traditional headgear looks on as he holds his camel at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

A trader wearing his traditional headgear stands in front of a herd of camels early morning at the Pushkar Fair in the Indian desert state of Rajasthan November 10, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

A man plays a traditional instrument to attract tourists near a herd of camel at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

A trader feeds his camels early morning at the Pushkar Fair in the Indian desert state of Rajasthan November 10, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

A camel trader wearing his traditional headgear prays while holding burning incense sticks at the Pushkar Fair in the Indian desert state of Rajasthan November 10, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

Camel traders run with their camels at the Pushkar Fair in the Indian desert state of Rajasthan November 10, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

Camel traders stand near a herd of camels at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

Camel traders wearing traditional headgears sit next to their camels at the Pushkar Fair in the Indian desert state of Rajasthan November 10, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

A camel trader herds his camels at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

Camel traders wearing traditional headgear cover themselves with blankets as they rest at the end of the day at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

A woman collecting camel dung to be used as cooking fuel looks on past a herd of camels at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

A camel trader wearing a traditional headgear has his ear ornament fixed by another trader at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

A group of camel traders wearing traditional headgear rest near their camels at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS)

Camel traders wearing traditional headgear drink as they sit in a group at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)

Camel traders wearing traditional headgear sit in a group at Pushkar Fair in the desert Indian state of Rajasthan November 9, 2013. Many international and domestic tourists throng to Pushkar to witness one of the most colourful and popular fairs in India. Thousands of animals, mainly camels, are brought to the fair to be sold and traded. REUTERS/Ahmad Masood (INDIA - Tags: SOCIETY ANIMALS TRAVEL)