More than $8 billion a year is traded from the illegal poaching of wild animals, the World Wildlife Foundation warned.
Glyn Davies, director of programmes, told ITV's Daybreak: "It's one of the big illegal trades alongside arms, drugs. It's over $8 billion a year traded in wildlife alone and we of course very much appreciate the princes support convening this meeting today."
More top news
An endurance runner has set a new record by running and climbing 24 mountains over a distance of 56 miles, in 24 hours.
It is up to the Supreme Court judges to decide whether the legal dispute over Brexit is, perhaps, a red herring for something else.
Urdu, Chinese, Arabic and Polish make up the majority of languages after English.