The greater one-horned rhino calf was born on October 17.

Mother Amala is very protective of her calf Hari and the two have developed a special bond.

Hari is estimated to weigh about 100 kilograms at the moment and will reach two tonnes by the time he is fully grown.

"Greater one-horned rhinos are not the heaviest of the rhino species, that honour goes to white rhinos. They are, however, the tallest of the rhino species standing at almost two metres at the shoulder," keeper Toby Stewart said.

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Amala and Hari now have access to a large paddock and can be seen by zoo guests a short walk from The Waterhole precinct. The pair have been observed galloping around the paddock first thing in the morning as well as spending time wallowing in the mud.

"Hari seems to have a lot of energy as soon as he heads out into the paddock and he keeps running after Amala has stopped. He'll then come back to her and give her a nudge and try to have a little spar with her," Mr Stewart said.

"On a warm day guests may see the pair wallowing in the mud. Wallowing not only helps keep rhinos cool on a hot summer's day but is also how they protect their skin from insect bites and the sun, with the mud acting as a sunscreen."

Hari and mum Amala can be seen in their paddock between 9.30am and 12.30pm every day.

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