Complex sentence: Globally, illegal wildlife trade is said to be the second largest illegal trade in volume, second to narcotics and followed by arms and ammunition but there is no hard data supporting this claim and recently the CITES Secretariat has disavowed this statistic.
Split into simpler sentences: Globally, illegal wildlife trade is said to be the second largest illegal trade in volume, second to narcotics and followed by arms and ammunition. But there is no hard data supporting this claim, and recently the CITES Secretariat has disavowed this statistic.