The African forest elephant is a smaller species that inhabits tropical forests. The Wildlife Conservation Society says their numbers fell by 65 per cent across the Central African Republic between 2002 and 2013 due to ivory poaching.
The organisation estimates that 12,000 to 15,000 forest elephants are being killed every year, which will lead to their extinction by 2023.
Peter Wrege is a behavioral ecologist who's spent many years as the project leader of the Elephant Listening Project.
