Zebra black and white at birth. Plains and mountain zebra foals are protected by their mothers, as well as the head stallion and the other mares in their group. Grévy's zebra foals have only their mother as a regular protector, since, as noted above, Grévy's zebra groups often disband after a few months. Attempts have been made to train zebras for riding, since they have better resistance than horses to African diseases. While occasionally successful, most of these attempts failed due to the zebra's more unpredictable nature and tendency to panic under stress. For this reason, zebra-mules or zebroids (crosses between
Zebra murders the operation was suspended. With the offer of a $30,000 reward came a break in the Zebra case. Anthony Harris, an employee at the Black Self-Help Moving and Storage, called police a week after the sketches had been posted and subsequently agreed to meet with Zebra case detectives at a bank parking lot in Oakland. Harris claimed to be one of the persons featured in the police sketches, and provided specific details regarding several of the attacks that the police never had released to the public. Harris denied he had committed any killings, but admitted he had been present at