@CNN: Researchers have discovered a gigantic complex of 200 million termite mounds in northeastern Brazil, which may be up to 4,000 years old and covers an area about the size of Great Britain https://t.co/WEYVNtyDbM https://t.co/9vHNuP3ARz

@CNN: Researchers have discovered a gigantic complex of 200 million termite mounds in northeastern Brazil, which may be up to 4,000 years old and covers an area about the size of Great Britain https://t.co/WEYVNtyDbM https://t.co/9vHNuP3ARz