Animal Rights: we need about learn about their emotions

Recently a research explains that the rats have empathy. The research want to find evidence about the animals that scientifics use in their experiments. Specifically, the researchers  found evidence indicate that rats can feel anxiety and stress when they see to other rats in aversive situations.  This research is important because shows the animals no human if can feel compassion by others. ( http://www.somosprimates.com/2011/12/ratas-compasivas/  )

I think is necesary the animal experimentation because it is important for to  be possible many medicine  that save lives humans and the other animals .  To me the problem is ethic and moral. What life is the most important? Maybe we shouldnt change the things in the world and the sick people should die.  This problem should be one of the most discussed for philosophers and today there no solution.

I have a pet, is a dog but i feel bad because it  has not place for run or rest quiet. I could got other dog if i have big house and i have the money for send it to veterinary always that it need.

The other point is the zoo. In the beggining, in Europe the zoos had humans, indigenous, the zoos were for entertainment and the rich collect all rare species .  However, to my mind the zoos should be for education , because the people know very little about nature. The zoos should not have animals that need things that the zoo can not give it, the Buin zoo dont have elephants because they need to live with their great family , if elephant do not stay with their familiy they could got depression.  Finally, i want to work in a Zoo. A psychologist in a Zoo ?!! You could be impressed. But in the zoos also there are people. And when i go the zoo i see very people that dont know how behave in a zoo. I want to help the humans and animal that we can to understand ourself and them.