A guide or ranger comes with you to keep you safe and tell about the animals.

VOA: special.2009.08.19

Doctor Monfort says many people are needed in the future to keep endangered animals on Earth.

VOA: special.2010.06.22

But some of them now defend the animals and work to keep them alive.

VOA: special.2009.05.05

American farmers traditionally keep their animals and equipment in barns that are rectangular.

VOA: special.2009.12.29