Prince William will give a speech tonight to mark the imminent start of an international conference that aims to tackle the threat to the world's endangered animals.
William will make an address at a Natural History Museum reception as world figures prepare to discuss ways of saving animals like elephants, rhinos and tigers tomorrow.
His father Prince Charles will give a speech at the London Conference on the Illegal Wildlife Trade being hosted by the Government at Lancaster House on Thursday. William will also attend and it will be hosted by the Prime Minister.
William has joined forces with the Prince of Wales to record a video message calling on the world to act now to save endangered animals.
Hong Kong is acting as the gateway for illegal ivory entering China - where the item is high in demand.
Prince Charles and Prince William joined launched a campaign to save endangered species like rhinos, tigers and elephants from poachers.