question: What geologic era is also known as the age of mammals?
distractor3: cretaceous period
distractor1: mesozoic era
distractor2: paleozoic era
correct_answer: cenozoic era
support: The Cenozoic Era literally means the era of “modern life. ” It is also called the age of mammals. Mammals took advantage of the extinction of the dinosaurs. They flourished and soon became the dominant animals on Earth. You can learn more about the evolution of mammals during the Cenozoic at the link below. The Cenozoic began 65 million years ago and continues to the present. It may be divided into the two periods described in Figure below . http://www. youtube. com/watch?v=H0uTGkCWXwQ.