The disease affects domestic animals – such as cattle, sheep, goats, horses, donkeys, pigs and dogs – as well as wild ruminants such as antelopes, gazelles and impalas. Even elephants and hippopotami are reported to have died from the disease in outbreaks in some parts of Africa. Wild carnivores such as lions, hyenas and jackals, are also susceptible. Birds, however, seem to be resistant to anthrax.