Although the Pajuna has been constantly crossed with breeds such as the Retinta or the Murciana after 1950 and several lineages have lost their primitive characteristics (such as the wild type colour, long legs and athletic body shape) some lineages still bear considerable resemblance to the aurochs.
Pajuna bulls weigh 600 kilograms (1,300 lb) on average and can reach a height of 165 centimetres (65 in) at the shoulder.
The horns, especially of the bulls, face forwards and are light in colour with a dark tip.
[1] Like other robust cattle breeds, the Pajuna is adapted to harsh conditions, especially in cold mountainous regions.
Because of their hardiness, their aurochs-like body plan and their wild type colour, Pajuna is used by the Dutch organisation Stichting Taurus in the TaurOs Project, to fill the ecological niche once occupied by the aurochs.