Complex sentence: Prins 2000, p.165 Before the city was established, herds of animals followed the rains and moved across the plains from Mount Kilimanjaro to Mount Kenya, a migration as great as the migration that takes place on the Serengeti.
Split into simpler sentences: Prins 2000, p.165 Before the city was established, herds of animals followed the rains and moved across the plains from Mount Kilimanjaro to Mount Kenya. This migration was as great as the migration that takes place on the Serengeti.