Aalborg Zoo in northern Denmark is asking the public to donate healthy but unwanted small pets—including guinea pigs, rabbits, chickens and even ponies under 147 cm—to be euthanised by staff and fed to its carnivores, which include lions, tigers and European lynxes. The zoo says whole-prey diets better replicate the natural food chain, improve animal welfare and reduce waste. Up to four small animals can be delivered on weekdays between 10 a.m. and 1 p.m., while horse donations require a valid passport and a 30-day disease-free period; donors may be eligible for a tax deduction. The appeal has triggered international criticism. A YouGov survey found just 23 % of Britons consider such requests acceptable, versus 63 % who oppose them. Aalborg Zoo has closed public comments on its social-media post but said it will answer questions privately. Danish zoos have drawn controversy before, notably when Copenhagen Zoo culled a healthy giraffe in 2014. Aalborg maintains that using euthanised pets as feed has been common practice in Denmark for years and remains within national animal-welfare rules.