There’s a jungle school in Bukit Tigapuluh National Park on the Indonesian island of Sumatra. Here, orangutans released from captivity learn to survive on their own in the wild.

What makes humans special? Some psychologists say it's empathy - our ability to recognize the emotions of our fellow human beings. Researchers want to find out if it is possible to teach a robot to be empathetic.

Reinforced concrete is heavy and its steel skeleton vulnerable to rust. Now researchers have replaced the steel with carbon fibre mesh. The result is lighter and more flexible than standard concrete slabs.

Many blind people can interpret reflected sound to obtain information about their surroundings. It is called echolocation. Some can learn to identify individual objects around them. The skill can be trained, and even results in changes to the brain.

Some paraplegics will be able to experience the wonder of walking again thanks to an exoskeleton. These robotic leg braces are strapped to the legs and respond to weak nerve signals.

With around 40 hospitals, 200 health centers and universal health insurance, Rwanda's health care system is among the most advanced in Africa.

Why does physical activity have such an effect on the brain? One study in Germany has shown that results are very dependent on exactly what kind of exercise is pursued. Dancing is apparently an excellent way to keep grey matter in good shape.

Traumatic experiences can cause people to suddenly lose their memory. Scientists have been investigating the mechanisms of amnesia. They found that patients' memories are still in the brain, but no longer accessible.

Even though many people have scaled Mount Everest, there are still no precise maps of the it. Researchers at the German Aerospace Center have now measured the mountain's surface with an unmanned aircraft.

There are about a million insect species worldwide. Researchers have now developed a method to destroy the protective chiton exoskeletons of specific harmful insects without affecting other species.