Sep 22

Have you ever wondered why rhinos seem to enjoy caking themselves in mud? Or pondered over what the collective noun for a group of rhinos is? Well fear not, inquisitive folk, because ARKive is here to answer your questions!

To celebrate World Rhino Day and help raise awareness for these magnificent mammals, we’ve gathered together some awesome images and fascinating facts about the five (yes, five!) different species of rhino for you to enjoy.

I’m a sensitive soul…

Black rhino image

Black rhino wallowing

Despite their tough-guy appearance, rhinos actually have quite sensitive skin. By wallowing in mud and allowing it to dry, rhinos are essentially covering themselves in a protective layer which acts as a barrier to biting insects and the sun’s harmful rays. I’m all for environmentally friendly products, but I’m not sure I’ll be trying this particular natural sun-screen method myself next summer…!

High-speed horn

Northern white rhino image

Northern white rhino running

They may look chunky and unable to move at more than a slow trot, but don’t be fooled! Black rhinos can run at speeds of up to 30 miles an hour, and can change direction rapidly. However, this species is definitely more of a sprinter than a marathon contestant, and can only run at this speed in short bursts.

Pucker up!

Black rhino image

The black rhino has a pointy, prehensile upper lip

One of the easiest ways to tell black and white rhinos apart is by checking out the shape of their lips. As browsers, black rhinos have a pointy, prehensile upper lip to pluck fruits and leaves from trees, whereas the square-lipped white rhinos are grazers, acting much like giant lawnmowers as they plod through the grassy savannah.

Can we have an ‘awww’?!

Southern white rhino image

Young southern white rhino

Baby rhinos are cute! OK, this may not technically count as a top fact, but I still think it’s accurate! White rhino pregnancies last for a whopping 16 months, and the calf drinks its mother’s milk for 1 to 2 years.

Military mammal?!

Indian rhino image

Indian rhinos have a somewhat armour-plated appearance

The Indian rhino has an armour-like appearance, due to the ‘plates’ of skin that cover its body. Indian rhinos often play host to avian hitchhikers, with various species of ‘tick birds’ riding on their backs. These birds are thought to feed on parasites found between the lumpy folds of the rhino’s skin.

Crash, bang…wallow?!

Souther white rhino image

A group of rhinos is known, rather appropriately, as a 'crash'

The collective noun for a group of rhinos is (drum roll, please!)…a crash! Need we say more?!

A rhino-saur…

Javane rhino image

A secretive Javan rhino

The prehistoric-looking Javan rhino is thought to be one of the most endangered rhino species of all. In fact, the Vietnamese Javan rhino, a subspecies of the Javan rhino, was driven to extinction in 2010.

The furry one

Sumatran rhino image

The Sumatran rhino is covered in reddish-brown hair

The Sumatran rhino is the only Asian rhino species to have two horns. This fact gave it its genus name Dicerorhinus, which comes from the Latin words for two (di), horn (ceros) and nose (rhinos). This species is also rather distinctive in that it is covered in reddish-brown hair. Despite being big and bulky, the Sumatran rhino is surprisingly agile, and is a decent swimmer.

Blind as a…rhino??

White rhino image

Rhinos have poor eyesight

Rhinos may have sharp hearing and a keen sense of smell, but they have very poor eyesight, and white rhinos are only able to see up to a distance of about 20 metres or so.

Help for the horned ones

Southern white rhino image

Southern white rhino

Rhino horns grow as much as 8 centimetres a year, and have been known to grow up to an incredible 1.5 metres! Sadly, rhinos are often poached for these horns, which are believed by some cultures to have medicinal properties. However, there is no scientific evidence for this, and in actual fact rhino horn is made of keratin, the same substance found in our own hair and nails. All five rhino species are threatened with extinction, and urgent action is needed if these magnificent creatures are to survive for future generations to admire.

Get involved

For more information about World Rhino Day, and events and activities in your area, visit the World Rhino Day website.

To learn more about rhinos and their conservation, visit the International Rhino Foundation.

To find out more about the rhino crisis, visit Saving Rhinos.

And finally, don’t forget to check out our rhino conservation board on Pinterest.

Kathryn Pintus, ARKive Species Text Author

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