The life span of wild pumas is 12 years. They have no special breeding period. The pregnant period of the lioness is 3 months, and one baby gives birth to 1~4 cubs. Pumas began to live independently at the age of two. Female cougars attach great importance to the education of their cubs. At first, the female puma always chose the best prey for her cubs, and then taught them how to bury the remaining prey bones after the cubs finished eating. The female puma will also choose small animals such as mice and rabbits as the target of training her young to kill prey. After finding the target, let them go hunting and stand aside to "guide" themselves. When the puma is half a year old, the female puma will train them to carry out difficult hunting movements. Psychological training for female pumas, teaching them to be bold, calm and fierce when facing big prey, and then taking them to practice killing deer, sheep and other small animals; Finally, I led them up the tree and learned the skills of hunting on the ground.