Charles Darwin, Mr. Evolution himself, didn't know what to make of the fossils he saw in Patagonia so he sent them to his friend, the renowned paleontologist Richard Owen. "The bones looked different from anything he knew," said Michael Hofreiter, senior author of a study published Tuesday in Nature Communications that finally situates in the tree of life what Darwin called the "strangest animal ever discovered". "Imagine a camel without a hump, with feet like a slender rhino, and a head shaped like a saiga antelope," Hofreiter, a professor at the University of Potsdam, told AFP.