A Danish zoo has made an unusual request. It asked pet owners to donate unwanted pets, such as chickens, guinea pigs, rabbits, and even small horses. These will not be exhibited in the zoo. Instead, they will be food for the resident big cats and other predators. The zoo wants "to imitate the natural food chain of the animals". Using the unwanted small creatures as food means "nothing goes to waste. The zoo added: "We ensure the natural behaviour, nutrition and well-being of our predators." It assured owners that pets would be "gently euthanized" before becoming food.

The zoo said putting down animals for use as feed was common in Denmark. The zoo's deputy director said: "Our guests and partners appreciate the opportunity to contribute." Regardless, there has been mixed reaction on social media. Some people felt sad about the euthanasia scheme. However, a man who donated a horse was satisfied with its treatment. He said his pet was put down "in the most peaceful and calm way". There is so much interest in donating that there are waiting lists for horses. Donors can even get a tax deduction based on their animal's value.