Chris and Jacqueline Henggeler have argued that the donkeys have been useful to restoring ecosystems on their 78,000 hectare cattle property and have spent years trying to protect them.

If you're planning on introducing a dog to your cat family, these are the 10 worst dog breeds to coexist with felines ...

Wild agaves are facing their own threats: they're harvested to make spirits, grazed on by cattle, losing their habitat to ...