Dental zebra

A zebra appeared to dance with death by leaning it head into the jaws of a hippo but it emerged without any injuries. It went in to do a really strange thing-clean the hippo's teeth.

The hippo is one of world's most aggressive animals and can kill with one snap of its powerful jaws. People who came the zoo where the animals live were amazed to see the zebra craning its neck into the mouth of the water-loving mammal. But their surprise increased when they realised the striped creature was cleaning the hippo's teeth.

The extraordinary specetacle was captured by Jill's Sonsteby, a photographer, at Zurich Zoo, in Switzerland.

The 34-year-old,from Jackson ville, Florida, USA said: "The zebra was in the was same enclosure as the hippo the and its baby. The hippo opened its mouth and let the zebra in there to clean it"

"There was no harm done to the zebra. Everybody was snapping pictures of the sight. It was so great to be there at that moment," he said.

Say the Truth

Scientists have now discovered the physiological mechanisms in the brain, which they claim can enable predicting whether someone will break a promise. A team at the University of Zurich carried out an experiment in a brain scanner where the breach of a promise led both to monetary benefits for the promise breaker and to monetary costs for the partner. The study showed that there was increased activity in areas of the brain playing a vital role in processes of emotion and control.
The pattern suggests that breaking a promise triggers an emotional conflict in a promise breaker due to suppression of an honest response.