Recent results of the KASCADE-Grande cosmic ray observatory provided evidence for an ankle-like feature in the spectrum for light elements (green curve), namely a hardening at E = 10**17 eV. The recovery in the spectrum of light cosmic rays could be the first indication of an injection spectrum from a new (extragalactic) source population of high energy cosmic rays. Therefore, this could be the first experimental evidence in favor of the long-sought cosmic ray galactic-extragalactic transition. The last year, the KASCADE-Grande experiment provided also evidence for a new knee-like structure in the all-particle spectrum of cosmic rays (black curve) at E = 10**16.92 eV, which was found to be due to a steepening in the flux of heavy primary particles (blue curve), called the iron-knee. The results about the ankle-light feature were published in Phys. Rev. D 87, 081101(R) (2013) by the KASCADE-Grande Collaboration, in which Dr. J.C. Arteaga-Velázquez , member of the IFM-UMSNH, is actively participating.