The cannonball tree bears fruit that is shaped like a cannonball. When these 10-inch spheres fall from above and hit the ground, they crack open with a sound like a cannon firing.
The tree (scientific name Couroupita guianensis is native to the south of the Caribbean and to the northern parts of South America. Yet it has also been growing in India for at least two to three thousand years and the jury is out whether it is native there or somehow the trees were transported across the continents several thousand years ago.
Link via The Presurfer | Photo by Flickr user xordroyd used under Creative Commons license