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Onager

life science Maturity 5-7 Next article →

The onager is a fascinating wild animal from Asia.

Onager Asiatischer Wildesel Equus hemionus onager Zoo Augsburg-11
Onager Asiatischer Wildesel Equus hemionus onager Zoo Augsburg-11

It belongs to the Equidae family. This family includes horses and zebras. The name onager comes from an ancient Greek word. Its scientific name is Equus hemionus. This name means "half-donkey" or mule. The onager is a very important part of the natural world.

6Kulane
6Kulane

It helps keep the grasslands and deserts healthy.

These animals have a special way of staying comfortable. In the summer, their coats are reddish-brown. In the winter, they turn yellowish-brown or greyish-brown. A dark stripe runs down the middle of their backs.

Asian Wild Ass skeleton at MAV-USP
Asian Wild Ass skeleton at MAV-USP

They are among the fastest mammals on Earth. An onager can run at very high speeds. To find food, they eat grasses, leaves, and fruit. If they cannot find water, they use their hooves to dig holes. This helps them reach water hidden deep under dry riverbeds.

Humans have known about these animals for a long time. A German scientist named Peter Simon Pallas described them in 1775.

Drawing of a hydruntine
Drawing of a hydruntine

He gave them their official scientific name. Long ago, these animals lived in many more places. They lived across much of Europe and northern Asia. Some even lived in the Levant region and the Arabian Peninsula. During the Bronze Age, a type of wild ass lived in Europe. Now, they live in places like Iran, Mongolia, and China.

There are six different subspecies of the onager.

Some are quite large, like the one in northern China. Others are very small. The smallest is found in parts of the Middle East. In total, about 28,000 mature onagers live in the wild today. Some groups are in danger of disappearing forever. One subspecies is already extinct. Two others are endangered. This makes protecting them a very big job.

Onagers are very social creatures.

They often live in groups. Some males live alone or with just one or two others. Other males protect a group of females. In some places, they even form huge groups of up to 1,200 animals!

IndianWildAss (cropped)
IndianWildAss (cropped)

They are most active during the dawn and dusk. This helps them avoid the hottest part of the day. You can think of them as the hardy explorers of the dry plains.

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🖼️ Images & Media (18)
File:Mongools steppepaard (4023673682).jpg
Mongools steppepaard (4023673682).jpg
File:Equus hemionus kulan.JPG
Equus hemionus kulan.JPG
File:Onager Asiatischer Wildesel Equus hemionus onager Zoo Augsburg-11.jpg
Onager Asiatischer Wildesel Equus...
File:Equus hemionus khur 1.jpg
Equus hemionus khur 1.jpg
File:SyrianWildAss-London Zoo.jpg
SyrianWildAss-London Zoo.jpg
File:Drawing of a hydruntine.jpg
Drawing of a hydruntine.jpg
File:Kulan Equus hemionus kulan Tiergarten-Nuernberg-9.jpg
Kulan Equus hemionus kulan...
File:Asian Wild Ass skeleton at MAV-USP.jpg
Asian Wild Ass skeleton at MAV-USP.jpg
File:Equus eisenmannae.JPG
Equus eisenmannae.JPG
File:Asiatic Wild ass.jpg
Asiatic Wild ass.jpg
File:Onagers Negev Mountains 1.jpg
Onagers Negev Mountains 1.jpg
File:6Kulane.jpg
6Kulane.jpg

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