KOTA KINABALU: Sabah's wildlife population would decline if new roads are built across key habitat areas without proper research, said University College Sabah Foundation (UCSF) in recently-concluded research. In the study, UCSF said that endangered species such as elephants, pangolins, clouded leopards, proboscis monkeys, slow loris and banteng were sighted along the samples of roads in areas with the presence of wildlife. It added that endangered species in these areas would be at risk of being killed by traffic, saying that human lives may be at stake if large animals such as elephants and banteng are involved in the collisions - especially in the Kinabatangan and Kalabakan areas.