Three critically endangered orangutans are returned to the Bornean Rainforest

Critically endangered Bornean orangutan breastfeeds her newborn baby after giving birth in UK zoo

Chester Zoo celebrates birth of critically-endangered Bornean orangutan infant

Endangered orangutans returned to the wild in Indonesia after rehabilitation

Baby orangutan born in Indonesia boosts numbers of the critically endangered species

Trekkers have amazing encounter with endangered orangutans in Indonesia

Watch: Star-gazing technology used to track endangered orangutans

Endangered orangutans face greater risk from Indonesian plans to shift capital to East Kalimantan in Borneo

Indonesian wildfires threaten endangered orangutans

Endangered orangutans at risk as Indonesia moves capital

Indonesian forest fires threaten endangered Orangutans

Two Endangered Baby Orangutans Rescued From Smugglers

Trekkers have amazing encounter with endangered orangutans in Indonesia

Orangutan, Hewan yang Masuk Critically Endangered IUCN

Critically Endangered Orangutan Released After Close Call With Humans

Sumatran orangutan (Pongo abelii) [Critically Endangered]

Indonesian officials release critically endangered orangutan back into wild

Sumatran orangutan (Pongo abelii) [Critically Endangered]

Critically endangered orangutan brothers arrive at Port Lympne

Critically endangered Sumatran orangutan baby born at Chester Zoo

Sweet Moment Critically Endangered Orangutan Bonds with Newborn