Sadie Witkowski - Brain, Behavior, & Cognition area of Psychology Department

The world is close to eliminating the threat from polio, but to eradicate the disease, it must be eliminated everywhere. Health officials say that's the tricky part, because if the virus responsible for the crippling disease exists anywhere, it can still spread worldwide. Sadie Witkowski reports on the challenges that face polio eradication efforts.

Only four ingredients are needed to make one of the oldest staples of mankind. Mix water, hops, malt and yeast and you're well on your way to making beer. But as Sadie Witkowski reports, it's the smallest ingredient in beer that's making the biggest splash. Originally published at - https://www.voanews.com/a/experienting-with-the-magic-ingredient-in-beer/4529222.html

While many people complain of struggling to put a name to a face, a rare disorder causes some people to not recognize faces at all. Prosopagnosia, also called face blindness, is a brain disorder in which people cannot recognize faces, sometimes even those of their family. Sadie Witkowski has more.

Most pet owners are ready to share stories of how their pets have consoled or responded to them during a time of distress. Most were just cute pet stories, until now - as new research is showing that dogs actually feel empathy for others. Sadie Witkowski has more.

When Sudan, the last male northern white rhino, died in March, hopes for a revival of the sub-species were crushed. But as Sadie Witkowski explains, the magnificent creatures might not go the way of the dodo. Originally published at - https://www.voanews.com/a/scientists-work-create-northern-white-rhino-embryos/4470180.html