Two critically endangered Sumatran rhinos are pregnant at an Indonesian sanctuary, a rare success for a species reduced to a few dozen animals in the wild. The pregnancies also highlight the genetic constraints facing the country’s captive-breeding program. Indonesia’s Ministry of Forestry and the NGO Yayasan Badak Indonesia (YABI), which manages the sanctuary, announced the pregnancies on Oct. 3. A female named Ratu is carrying her fourth calf, fathered by Andalas, while her daughter Delilah is carrying her second calf, fathered by Harapan. Both are due around May 2027. Ratu was captured from the wild in Sumatra in 2005, while Andalas and Harapan, who are full brothers, were born at Cincinnati Zoo in the U.S. in 2001 and 2007, respectively. Delilah was born to Ratu and Andalas at the Sumatran Rhino Sanctuary in 2016 — meaning the father of Delilah’s calf is her paternal uncle. Experts at the Sumatran Rhino Sanctuary seek to pair the least-related males and females possible, Nina Fascione, executive director of the International Rhino Foundation, told Mongabay in an email. They also must consider factors such as differences in body size, she said, but their choices are limited by the small number of rhinos under human care. The 11 animals in Indonesia’s breeding program are the only captive Sumatran rhinos in the world, and all of the males in the program are related. “The current critical situation outweighs the genetic diversity considerations,” Fascione said. Ratu, a captive female Sumatran rhino, is expecting her fourth calf. Image…This article was originally published on Mongabay

KHON KAEN, Thailand – A wildlife officer holds a leopard cat cub in one hand, its entire body small enough for her fingers to wrap around its torso. With the other hand, she feeds it formula milk from a syringe. This is the latest rescue at the Department of National Parks and Wildlife’s rescue center in Khon Kaen, northeastern Thailand, which rehabilitates and ultimately releases dozens of lost and injured leopard cat cubs every year. Behind the officer, 15 larger leopard cats (Prionailurus bengalensis), rescued as young cubs months earlier, pace around inside their cages. They look a lot like domestic cats, only slightly more slender and with sharply defined markings on their fur; unlike domestic cats, they bare their teeth and growl whenever a human walks past. Nine of the cats, between 8 and 9 months old, will be released in the forest that afternoon. The other six, a younger cohort, will take their place in the center’s specialized behavioral rehabilitation pens, where they will spend two months practicing their climbing and hunting skills in preparation for life in the wild. Leopard cats are small wild felines common across much of Asia. The IUCN classes them as least concern, though experts believe populations are increasingly vulnerable to hunting and habitat loss. Highly adaptable to changing landscapes, leopard cats often live close to farms and villages. In northeastern Thailand, females are frequently found raising their litters in sugarcane fields. The tall leaves offer shelter from the sun, but proximity to…This article was originally published on Mongabay