Complex sentence: After the January 25 revolution, tourism in Egypt came to a halt and because that was the only source of income for those who worked at tourist attractions, they were unable to care for their animals and as a result, they were suffering.
Split into simpler sentences: After the January 25 revolution, tourism in Egypt came to a halt. Because that was the only source of income for those who worked at tourist attractions, they were unable to care for their animals and as a result, they were suffering.