Buru babirusa teeth are strong enough to crack any kind of nuts. Babirusas lack the rostral bone in their nose, which is a tool used by other wild pigs for digging. Therefore, they prefer feeding on roots in soft muddy or sandy soils. Cannibalism was reported among babirusas, feeding on the young of their own species or other mammals. North Sulawesi babirusas form groups with up to a dozen of individuals, especially when raising their young. Older males might live individually. The north Sulawesi babirusa reach sexual maturity when they are 5–10 months old. Their estrous cycle is 28–42 days, and the
Animal Defenders International against the use of animals in circuses. ADI, through country-specific investigations, has contributed to the passing of animal rights laws, with Bolivia passing a law to ban both wild and domestic animal acts in all circuses; and similar legislation under consideration in Colombia and Peru. In the UK, ADI is lobbying the Department for the Environment, Food and Rural Affairs to introduce a ban on the use of “certain non-domesticated animals” in traveling circuses in line with DEFRA's 2006 promise to introduce an Act. ADI’s investigation into the use of animals in circuses in the UK and Europe in 1998,