See my 3 weeks old Texeruvian, which looks like Sheltie.  Their fur are amazingly long at this young age.  I still remembered when they were first born, I thought they turn out to be normal American short hair, never expected their fur quality turn out to be as long as Sheltie.  Now they look exactly like Sheltie instead of Texel or Peruvian.

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Added on April 29, 2011, 1:06 amAnd this is my 4 months old male Peruvian, his fur is bushyly thick.