Mantas are among a growing number of animals in trouble amid high trade demand that is ensnaring a broadening range of species. Mantas, as well as five shark species, have gained preliminary approval for tougher international trade restrictions, but the move is no guarantee of safety, experts say. "We're struggling to keep pace with the sheer scale of the problem," said Colman O'Criodain, a wildlife trade policy analyst with WWF International.

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