food
They have the basic intelligence they need to survive in their environment.
No, cougars cannot drink ocean water when they have no fresh water. Like humans, cougars require fresh water in order to live.
Eastern cougars were hunted to extinction in the beginning of the last century. The only surviving member of this race is the endangered Florida panther, of whom some 80 survive.
Yes, there are many 'hairy' animals in the desert - cougars, bobcats, bears, badgers, raccoons, etc.
Yes, cougars are adapted to almost any biome and are found in all the deserts of North and South America.
Water
Most jaguars live in the tropics where there is little difference in temperature between summer and winter.
Lungfish survive intense heat and and in active state called extivation
They would not survive.
cougars try their best to avoid each other.
Yes, there are Cougars in mexico.