All organisms have adaptations that help them survive and thrive. Some adaptations are structural. Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations. Adaptations are the result of evolution.
Mahalia Jackson became one of the most influential gospel singers in the world. At most of Dr. King's speeches and rallies she sang Amazing Grace and other uplifting songs. At the March on Washington in 1963, she sang I've Been 'Buked, and I've Been Scorned in front of 250,000 people.
In 1999, Shanice scored another hit song, When I Close My Eyes, which peaked at #12 on Billboard's Hot 100 chart. She is recognized for her coloratura soprano voice and her ability to sing in the whistle register.