Banteng are a species of wild cattle found in South East Asia whose numbers in the wild have declined by as much as 95% since the 1960s.
It's estimated that there could be as few as 5000 banteng left in the wild, with their numbers in decline due to hunting for the trade in their horns and also a loss of their forest habitat.
Banteng play a key role in circulating nutrients through ecosystems, dispersing seeds and maintaining food chains. They are also a critical food source for many carnivore species, including tigers and leopards.
Since arriving at the zoo in 2013 the herd have had three calves born, the most recent being Tembadau who was born in July 2014.
Our banteng can be discovered on Bali island as you explore Islands at Chester Zoo.