National GeographicNat Geo Wild
  • Muskoxen moult their wool every year but the guard hairs keep growing and in adults can drag... [Photo of the day - June 2015]
    Muskoxen moult their wool every year but the guard hairs keep growing and in adults can drag along the ground. This image is from Masters of the Wild.
    Uwe Anders / NDR Naturfilm / Doclights GmbH