Most human infections with Rift Valley fever are caused by direct or indirect contact with diseased animals.

VOA: special.2010.07.12

Mister Cooper says the substances build up in the cells of plants, animals and human beings.

VOA: special.2009.06.23

From the beginning of human history, wild animals provided food, clothing and sometimes medicine.

VOA: special.2009.11.08

It says an explosion or explosions by comets could explain the disappearance of many animals and human beings who lived in North America at that time.

VOA: special.2009.01.20

And,sometimes animals can fill that void that human beings can't fill.

VOA: special.2009.12.11

Genes exist in plants,animals, human beings and even some viruses.

VOA: special.2010.03.23

Professor Snowdon played calming human music for the animals.

VOA: special.2009.09.29