|Image Credit: NASA/JPL-Caltech/MSSS|
At least that's what UFO watchers are making of it.
Indeed is seems to be a fossilized bone. The object is lying near a group of other shapes, that look somewhat like pottery.
UFO watchers have been pointing out more such objects over the last days. Could Curiosity actually be on to something? Are we looking at the remains of lost life forms on Mars? Let's hope that research can shed light on this.