She had not eaten for five days and had been unwell, the park said in a statement announcing her death.
Machli's name — sometimes spelled Machhli or Machali — came from the Hindu word for fish because of a fish-shaped mark on her face.
Pence to Conservatives: 'This Is Our Time'
Vice President Mike Pence spoke at the Conservative Political Action Conference Thursday evening in National Harbor, Maryland. It was the ninth time that Pence has spoken at the gathering, but the first in his new role as vice president.