The Animal protection Society is primarily a pro-animal entity that is prone to a relationship with animals based on respect rather than extravagant and sentimental attitudes sustained by fanaticism, extremism and paternalism that distort the true meaning of humanitarian work. For the pro-animal cause, there is not difference between human and animal pain.  Suffering only exists regardless of the species to which it belongs. We respect deeply the work of ecologists and we have a great concern over the serious environmental problems of the planet, but our work is limited only to disseminate and raise awareness of animal suffering.  
The humanitarian work developed by the Animal Protection Society involves treating animals with respect and consideration for their lives. By all means at our disposal, including the media, we extend our voice of protest trying to prevent crime and everyday massive slaughterhouses, intensive breeding farms, circuses and zoos, racecourses, centers for zoonoses, Bullfighting, hunting, fishing, and places where animal experiments are conducted. This is testified by more than six hundred newspaper articles and countless media interviews on local and national radio and television.
Medellin Animal Protection Society goes beyond maintaining and assisting a number of animals, helping only a few dogs and cats. The greatest achievement was reached by creating a favorable atmosphere so that municipality would take care of those who are in a state of helplessness in a number infinitely smaller than the one we had to attend two decades ago.  These numbers are recorded in the statistics kept by our institution, which are also the only truthful and objective way of knowing the situation and the trend in the problems of our city.  
The Animal Protection Society advocates the eradication of all forms of animal exploitation.  Avoiding the slaughter is the main concern of a humanitarian work like ours, and not only because  millions of animals are killed for human consumption but also because of the state of helplessness in which they are. We fight against all forms of violence, abuse and exploitation that deliberately and based on economic interests are done with animals.  
In its interest to spread the fight for animal rights, the institution participates in meetings, lectures, conferences, roundtables and discussions to raise awareness about the unfair treatment to animals, always trying to reach a broad audience. Approaching the problem of the erratic human behavior towards animals from a global perspective and not just the anecdote about specific cases occurred in a given time, is our concern. We believe that this is a fight that must be done with an open mind and intelligence as the heart and sentiment, not sentimentality, made very clearly to serve the cause.
In order not to repeat mistakes overtaken by us, we offer advice to other similar entities on issues related to existing laws in our country, shaping animal defenders boards in different cities, and also on how to manage  a pound and on all issues we have accumulated by our own experiences.  
More than 92 years of work  back up the institution social recognition, because it has been present throughout the development process from the fledgling town until what it is now: the city  in which we have developed a civic work nobody else was willing to assume.  
The entity has overcome difficult times. Many years ago we objected the cruel slaughter of stray animals by the secretariat of health, and more recently we had faced the arrogance of public officials who wanted to impose their ideas forgetting social service. Despite everything, the institution continues with the moral rectitude that allows its autonomy. At the end of the 80’s we managed to shape the Board and Defense of Animals and we have been part of it since then.  At the beginning of the 90’s we managed to shape the first ethics committee for animal use in research, and we are still part of it. . Thanks to the action of the Animal Protection Society, Medellin does not have a center of zoonoses, a sad place for extermination that, unfortunately,  other main cities in Colombia have to endure There is no need to justify the countless actions performed, as the beginning of the massive sterilization campaign in 1998 several years before any other entity had assumed the responsibility.  Nowadays The Society is the only entity that has the necessary infrastructure to take care of pets professionally.  . It had the only pound in the city until the municipality opened its own place, and still has a  veterinary clinic  open to the public, regardless of socio-economic stratum, that is unique in Medellin. 

In the year 1917 the  Chairman of the municipal council of the city of Medellin hinted at the Society of Public Improvements the need and desirability of promoting the formation of a Society for the Protection of Animals. Willing to create it, the members of that entity made an effort to obtain information from other cities and proposed its creation by the Decree number. 67 of July 27, 1917 which was approved by the Governor’s office.  Then, the mayor’s office created the Animal protection Society and appointed the board of directors..  
 
Due to the  gaps of information left by the accepted practice of files destruction,  it is difficult to reconstruct the early years of the emerging entity.  We  do not have any details of the actions performed or the key people in its initial operation. The partial recovery of documents enables us to say that in the year 1929 the Governor of Antioquia, Dr. Camilo C. Restrepo, through Decree Number. 262, October 25, 1929 gave the institution the character of a departmental entity establishing, through the mayors,  special boards that work for the sake of  animals in each municipality.
 
During this time the entity underwent changes that reflected the situation, sometimes with the support of the municipal administration, others in open opposition to it by its health policies of canine extermination and population control practices, such as happened in 1943 when the director of Health Office gave the order of poisoning these animals.  . For many years the organization published a monthly magazine "Our Friends" , published in the Municipal Printing which  reached two thousand copies printed per issue, and biweekly newspaper with his name. In addition broadcast a show by the radio station Clarity: a program called "The voice of Cruz Azul."  
 
The publicity of the station read: "Every day from five to five and a half in the afternoon, at your homes. Advice, instructions, prescriptions on diseases of  animals, the most beautiful stories about their life, music and various items of interest. Tune your radio station Clarity and help the campaign Pro-animal ".  
 
Besides having offices in the Town Hall (where Museum of Antioquia is located today), the Society had at its disposal the pasture "Guamal" on the road to El Poblado, "Potrero de las Mulas" or "Surrumbal" which was owned by the municipality and was located at the head of Palenque, near the Restrepo neighborhood in  Robledo sector.  Also the farm "Rondalla," in Robledo which was owned by Julio Vasquez Gaviria.  This citizen  assumed the mass vaccination of dogs in the city in the year 1951 motivated by the rise in Hydrophobia, spread by stray dogs who were mercilessly persecuted and mistreated.  
 
The Animal protection Society was there during the growth of the emerging city in the early nineteenth century.  At that time the municipality had a transportation system based on railways and the cargo fleet of horses that were located in the old market square in the area of Medellin Railway Station. Considering the needs of the community, the  Society created a cooperative for drivers to improve their work, and the treatment that they should  give to horses. Important members of the local society, as well as foreigners who had arrived to  Medellin in the early nineteenth century and after World War II were part of this cooperative.   These people also had an influence on the opening of roads, schools of agriculture, arts and crafts , Construction of bridges and buildings, industry and commerce, committed to the cause of animal welfare. In this cause, there was an effective representation of civil authorities, church and military representatives who created a clear policy of respect towards animals and control of violence against them.  
 
In the forties the Society became an independent entity and continued working with the support of municipal and departmental administrations, finally changing its radius at the city level.  
 
As an advisor institution it established branches in neighborhoods of the city and other municipalities in the department, and. helped other cities with the organization of similar entities.  
 
Its presence in the social activity of the city was viewed as a valuable contribution to educating the younger generations. With lyrics and music of Leon Zafir Carlos Vieco introduced its anthem that was played at parties and commemorations referring to animals, such as the October 4 when a lavish parade society was moving from the Plazuela Nutibara, center of the official administration to the Forest of Independence (today our Botanical Garden) amidst gangs and martial Bands..  
 
With the changes that were taking place in the city, the institution focused its activity towards the control of many different aspects:  the livestock fair, where  Livestock were marketed, galleries from the old market square in the area of Guayaquil where poultry were sold, the city slaughterhouse , the transport of livestock and poultry by road and rail, the trade of animals in the streets, the horse racing at the Hippodrome San Fernando, monitoring the use of animals at the University of Antioquia’s medical school, cases of road accidents mainly by the tram, vaccination of dogs and even some police cases.  
 
All those issues were so important that the transportation of burdens in horse-drawn vehicles was regulated by the city mayor who approved or rejected requests to hook horses to work on Sundays and holidays. Permission to transport products from the slaughterhouse in the sector Tenche was given on the condition that horses would work only half-time. In the fifties, magazines of the entity talked about the existence of 500 members, contributors and partners in all matters concerning animal species. The Society enjoyed a great prestige among the citizens who appreciated its participation in     everyday life issues.  Since the Society was seen as a private institution which tried to meet the community needs, its work was also valued by the municipality administration.  At that time the maim efforts of the institution were aimed at the construction of a Veterinary Hospital following the plans designed by the architect Nel Rodriguez, the one who had already designed the old City Hall – today Museum of Antioquia-.   They  renowned reputation to the citizenry who watched with respect and abide by their participation in. Respect that he also professed municipal administrations who saw in it an organization of unquestioned civilian community service. For those years the effort was aimed at building the Veterinary Hospital with plans undertaken by the architect Nel Rodriguez, to develop the same levels of the old city hall, today Museum of Antioquia. The project  anticipated the existing systems for prepaid medical care services because its financing was based on animal owners who became partners in the hospital.  
 
As the city began to change, the use of animal traction vehicles decreased considerably, in favor of automobiles  By that time, family groups  began to incorporate animals such us cats, dogs, birds and even cows in those with a peasant vocation. These became then the target public of The Society.  Subsidiaries in many neighborhoods were created as well as the Cruz Azul – brigades of children and young people who were protectors in the common cause of respect for animals-.  The institution kept controlling the transportation of livestock to different places, including the Antioquia Railway.
 
During the seventies the Society The Animal Protection Society settled  in the sector Robledo, Barrio San German, a quiet place with low housing density,  and big one-story houses with big yards.  In this area, during the administration of the Mayor Guillermo Mora Londoño, The Society received a lot as a loan, on the condition of leaving their site in El Chagualo, because the Barranquilla Bridge was going to be built there.  The lot was situated on the low part of the hill El Volador. 
 
In recent years the organization has developed programs collecting stray animals and sheltering them, campaigns for massive sterilization of dogs and cats, emergency care, surgery, adoptions and counseling to the community and  other municipalities. Nowadays it has the only clinic service with a social approach that provides affordable treatments -both curative and preventive- and aims to provide health services for animals whose owners can not afford regular and, in a special way, to or sick animals hit the street.  
 
The institution has a seat on the Board of Animal Defenders of the city and the committee of experimentation.  It gives advice and support to new entities, conducts educational activities with lectures at colleges and universities, trains inspectors and authorities in handling the current regulations in our country, as well as the general public on the transportation, proper handling and animal welfare and respect for life in all its forms.