Russian ecologists and biologists finally returned three tiger cubs, which are now grown-ups, to the place they were born to live in.
      
      Three underfed tiger cubs were found in taiga last spring and taken to special rehabilitation centre, where they recovered and learnt to hunt. Before letting out, all tigers were examined by veterinarians and received collars with GPS ARGOS devices, which will help Russian scientists to track tigers in taiga. These collars will unfasten automatically in a year.
      
      The national park, where the tigers were released, has no other tigers on its territory, but has enough hoofed mammals for tigers to feed on.
      
      Last year one tiger cub was released in another national park. GPS collar tells researchers that the tiger is alive and hunting.
      
      Source: Science & Technologies
      
Author: Anna Kizilova