Highlighting Hyrax In The Nairobi National Park Very early one morning we drove down the western boundary, it was a clear, crisp morning and everything seemed new and fresh. After a while, we drove up the steep slope that leads to the Mokoiyet picnic site. Immediately on our right, there was a sudden movement in the sunlight. There up on the highest rock sat a large family of yellow-spotted rock hyrax or bush hyrax (Heterohyrax brucei) sitting there, sunning themselves in the morning warmth. (Also known as Rock Rabbits (but they are not related to rabbits) or Pimbi in kiswahili or in some parts of Africa they are called Dassies).