PASSAG E 2 Zoos, the most accessible nature reserves for most people in Russia, are becoming endangered species. //With 11 million people, Moscow has only one z00 covering about 60 acres. it is crowded with visitors all summer. //Zoo officials say there is not enough space to keep lions, giraffes, gorillas and chimpanzees. //The city has been giving money to expand and improve it. Five major building projects are underway and five more are planned. //A few of Russia's new banks and businesses sponsor exhibits, and an American businessman gives USS 100 a month to buy fruit for the apes. //Now many zoo workers have quit because they are paid very low wages.