Evolution Questions

• How did evolution ever lead ostriches to hide their head in the sand when an enemy approaches?
• When did humans stop evolving?
• Why did evolution create a chicken that lays so many unfertilized eggs when that is so wasteful?
• Why do humans crave sugary foods? Shouldn't evolution lead us to crave healthy foods?
• Why do humans have an appendix even though it is unnecessary?
• Why do my fingers absorb water and become wrinkled?
• Why does evolution always lead to more advanced species?
• Why have humans evolved to be taller over the last three hundred years?