This bird doesn't fly. It runs across the forests of the South Pacific island of New Caledonia where it resides.
They used to be hard to track down, being only visible at night, but the creation of a reserve has made things easier. European settlers brought with them pets such as cats and dogs, and these animals almost spelled the end for them, as they had no predators before. There are between 500 and 1,000 kagus left.
Scientists are appealing for more people to donate their brains for research after they die.
Life on Earth may have arrived from Mars on an asteroid, scientists have claimed.
Lunar mission scheduled at the end of 2017 could find out if beer can be brewed on the moon.
A bottle used to teach children how far litter can travel ended up on Scottish beach after 8,700-mile journey.
Confused Apple customers are finding coins in their MacBooks.
High levels of iron help prevent hearing loss, a study has claimed.
A software engineer has constructed a fingernail-sized engine made of paper and it totally works!
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