why animals should have rights
The status of an animal is not some inborn property, like the colour of its hairs or the way its body is shaped. It is a socially and culturally assigned value that can be given and taken away. We, humans, as a cultural group determine the status of an animal. Status is also a gradual phenomenon, one can assign high or low status to an animal. People, animals and objects can be assigned more or less value in a gradual manner. At the top of the status series one can sometimes find a sudden transition. When a pop star, a racing horse or an old monumental house slowly grow in status over time and crosses some threshold value, they can receive an untouchable super status. Finally status is a relative concept. I assign a different status to a primary school teacher than one of his students does.
Researchers assign a lower status to a laboratory rabbit than to a rabbit kept as a pet. The sociologist notices the behavioural changes when people of different status meet each other. The ethologist sees the differences in status amongst herd animals like wolves or humans, that cause dominating or submissive behaviour. When people of similar status meet, however, there are no behavioural changes.
The realisation that status is not some absolute measure but an assigned, culturally determined phenomenon, implies for people in a subculture that assigns a "low" value to animals (like industrial farmers or animal experimenters) that they have as few "hard" arguments as the people of the subculture who assign a higher value to animals (like animal protectors). As long as these two subcultures continue to live strictly separated, each meeting will lead to a culture shock and consequently lead to ignorance behaviour. One will keep his or her mouth closed during the next birthday party or outside the laboratory.
Policy makers were wondering if the status of an animal can be improved, e.g. in biotechnology. The interesting aspect of status is that it is a dynamic concept. The status of a top researcher can fall down quickly when unethical behavior takes place like fraud. The other way around, a biotechnologically changed animal, e.g. bull Herman (first genetically manipulated bull) became so popular that the government eventually decided he cannot be slaughtered as an ordinary bull. Eventually he passed away in April 2004.