Chester Zoo in the United Kingdom has announced the birth of a newborn anoa calf named Mentari [1].

As the smallest species of wild cattle, the birth of an anoa is a significant event for global conservation efforts. The rarity of the species makes every successful birth a critical step in maintaining the genetic diversity of these animals.

The calf arrived in September 2023 [2]. At birth, Mentari weighed about seven kg [4] and measured approximately 50 cm tall [2]. To provide a sense of scale, the calf's height is similar to that of a standard traffic cone [6].

Anoas are native to the forests of Sulawesi in Indonesia. Because of their small size and secluded habitats, they are often overshadowed by larger bovine species. The arrival of Mentari at the Cheshire facility represents a milestone for the zoo's breeding program.

Zoo officials said they have monitored the calf's growth and health since the announcement. The animal's small stature is a defining characteristic of the species, which distinguishes the anoa from other wild buffalo and cattle found across Asia and Africa.

Conservationists said that captive breeding programs are essential for species that face habitat loss and poaching in the wild. Mentari's presence in the UK provides an opportunity for researchers to study the developmental needs of the world's smallest buffalo species.

“Mentari weighed about seven kg.”

The birth of an anoa calf in a controlled environment like Chester Zoo serves as a biological insurance policy against extinction. Because these animals are endemic to a specific region of Indonesia, captive populations help mitigate the risks posed by local environmental disasters or poaching, while increasing public awareness of the species' unique evolutionary traits.