Life in the wild harbors the risk of predation, food shortages, harsh climates, and intense competition. Zoo animals, by contrast, are protected from these dangers.
Debates about humane treatment of animals are commonplace when the species in question is a charismatic mammal, such as a panda or a furry house pet. But what about invertebrates?
The killing of millions of baby chickens is one particularly dark side of industrial chicken farming that might be stopped thanks to impending embryo technology.