1. Predation: Armadillos are preyed upon by a variety of animals, including coyotes, wolves, jaguars, ocelots, pumas, snakes, and alligators.
2. Hunting: Armadillos are hunted for their meat, skin, and shells. In some areas, they are considered a delicacy and are hunted extensively.
3. Roadkill: Armadillos are often killed by vehicles on roads, especially at night when they are more active.
4. Habitat loss: As human populations expand and urban areas grow, armadillo habitats are being destroyed, which can lead to population declines.
5. Disease: Armadillos can be affected by a variety of diseases, including leprosy, tuberculosis, and tularemia. These diseases can spread quickly through armadillo populations and cause significant mortality.
Overall, the number of armadillos that die each year is likely quite high, but the exact number is difficult to determine due to the lack of comprehensive data.