These are succeeded by the Dublin Zoo in Ireland, which opened in 1831, and the Royal Artis Amsterdam Royal Zoo in the Netherlands, which opened in 1838. Or the Antwerp Zoo in Belgium, opened in 1843, or Berlin Zoo, from 1844, in Germany. In the USA, the oldest zoo is the Philadelphia Zoo, which, due to the Civil War, could not open its doors in 1859, as planned, but ended up doing so in 1874. The oldest zoo in Asia is the Trivandrum Zoo, dating from 1857, in the southern Indian state of Kerala. And in Australia you can still visit the Royal Melbourne Zoological Gardens, which opened in 1862.
In their beginnings, zoos were a tribute to the curiosity of the public and also enclosures for animal research and study. In those years of the 19th century, the extinction of species was not a problem, as it is today, and the welfare of their specimens was not a priority either. Today however, the vast majority of animal parks maintain a clear commitment to animal welfare, to the conservation of endangered species and to the education of children and young visitors.