This tree is one of the most dangerous in the world-- it can explode, stab and poison

The sandbox tree, native to tropical regions, presents a striking example of nature's beauty and hazard. Its trunk is covered ...

80 million trees were wiped out in seconds in Siberia after a space rock explosion more powerful than the Hiroshima bomb, but scientists never found a crater

An explosion powerful enough to destroy millions of trees should have left behind a giant crater. Instead, when scientists finally reached the remote Siberian wilderness where the blast had occurred, ...