One of the most devastating diseases in human history - the Bubonic Plague (also known as Black Death) - has killed a capuchin monkey at the Denver Zoo. The disease is carried by fleas and is highly contagious. Zoo officials believe that the monkey contracted the disease from a nest of wild ground squirrels. To discourage interaction between humans and potentially infected animals the zoo has posted signs asking that people not feed the animals.
Implications - This has promoted zoo officials to alter the habitats of many animals, as well as renew efforts to prevent visitors from feeding the urban wildlife.
The Bubonic Plague is known for killing millions in the 14th Century and is considered one of the most dangerous contagious diseases in the world.