I have lived in 2 nations (Mexico, US), 3 states (Michigan, Connecticut, Tennessee), and had 3 local Zoos in the US that I would visit (Detroit Zoo, Beardsley Zoo, and Memphis Zoo). There are Zoos in Mexico I have visited as a kid but I have more fond memories in American Zoos. I have noticed a discrepancy between the 3 US Zoos I have visited. The Detroit Zoo is a large Zoo with it covering 125 acres. It has a lot of nice exhibits that are large and fit the needs of large animals like polar bears and big cats. The Beardsley Zoo I have visited when I lived in CT, is 52 acres but it seems to make up its small size for the big cats it has with a lot of evenly spaced exhibits and that there were a lot of enriching events that keep the cats preoccupied. The Zoo that is currently local to me is the Memphis Zoo in TN. It is intermediate between the Detroit and Beardsley Zoos with it being 75 acres. But there seems to be some issues. While some exhibits seem nice (like the Grizzly Bear and Tiger ones), there are some lackluster exhibits that I think need some improvement. The polar bear exhibit in that place is much smaller the Detroit one (fun fact: Detroit Zoo's Arctic Ring of Life is the world's largest polar bear exhibit) and that the bears there seem uncomfortable being in Memphis. In the summer at Detroit, the bears don't seem to mind it, but in Memphis, where it gets humid, the bears seem to do stereotypic behaviors that include the weird dancing moves and awkward pacing. The big cat exhibits seem once again, small compared to Detroit. The Beardsley Zoo tiger and leopard exhibits are small but they seem to allow the cats to have privacy and enjoy enrichment. The Memphis cat exhibits seem old fashioned and some of the animals do the anxious pacing and snooze on their rock beds all day. I am an avid fan and supporter of Zoos and I think that while there are many positives with them, they do have some problems that could be addressed without the animal rights movement making a fuss over them. I do like the Memphis Zoo however, despite its flaws and that they do have contributed to conservation of several endangered species like the eastern pine snake (most animal lovers care for cute mammals like pandas and monkeys than snakes) and is one of the few US Zoos that has pandas. What do you think could Zoos and Aquariums do to improve themselves and provide good welfare for their animals? What would you do if you were to improve Zoos and Aquariums around the world?