Millions of pounds are made each year by traffickers who sell trophy animals on the black market. Big cats, hippos teeth and tortoises are among record numbers confiscated by Border Agency officials at Heathrow over the past year.
London Zoo has now been called upon to give some of them a new home and a second chance.
David Wood reports:
More top news
Expect some sunny spells and scattered showers after rain clears east.
The British Open Water Swimming Championships have kicked off at the Serpentine in Hyde Park.
London's mayor Sadiq Khan has warned that a split or failure to unite after the bruising leadership contest could kill off Labour forever.