STEPPE CHANGE

Herds of saiga have returned to Kazakhstan, but there's a fine balance to tread

- MARK HILLSDON

WE'RE FOLLOWING AN old Soviet-era map across the Kazakh Steppe when the first saiga break cover. Heads down, they charge through the knee-high grass reaching speeds of up to 120kph, a hard-wired legacy from the days when Asiatic cheetahs were the top predators on these central Asian grasslands.

Following decades of conservation work, this strange-looking antelope, which wouldn't be out of place on the set of Star Wars, is back, with more than 2.8 million individuals now roaming the landscape. But 20 years ago, the picture was quite different.

A relic from the last ice age, the saiga once rubbed shoulders with the mammoth and woolly rhinoceros. It is incredibly tough, able to survive the worst extremes the steppe can muster. In winter, when temperatures plummet to -45°C, it grows a thick shaggy coat, while its bulbous nose warms the cold air it breathes. In summer, when the mercury can hit 45°C, its nose helps to filter dust, as well as cooling the blood.

THE KAZAKH STEPPE IS A VAST wilderness, stretching from the Ural Mountains in the west to Mongolia in the east. Covering more than 800,000km², it represents a quarter of the world's remaining temperate grassland. It's a flat, featureless landscape, punctuated by isolated farms and occasional bursts of green, as plants flourish around the scrapes where snowmelt lingers well into summer. The heat of the sun brings out an intoxicating smell of wormwood and other herbaceous plants, while the air buzzes with insects and the familiar trilling of skylarks.