Smilodon - Saber-toothed Tiger
by Enrique Fiesta
Greetings young reader! Today we are going to take a step back in time and enter the age of prehistoric mammals. Mammals are animals with hair or fur that secrete milk for their babies, and typically give birth to live young as opposed to laying eggs. These prehistoric mammals are an extinct species of animal that began to live on the Earth about 2.5 million years ago.