First Professional Video of Wild Cross River Gorillas (video) Wildlife Conservation Society Share Print E-Mail Loading video... Caption This clip is the first professional video of the elusive and highly endangered Cross River gorilla. It is the world's rarest great ape, numbering fewer than 300 individuals along the border of Nigeria and Cameroon. Credit (c) NDR Naturfilm Usage Restrictions Footage must be used in conjunction with WCS release and credited to (c) NDR Naturfilm Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.