How An Injury Changes A Deer’s Next Antler 😮

If you take a knife and nick the deer antler, a small bump can form as it heals and keep growing with the antler. A few months later, the antler heartens, falls off, and the injury disappears with it. But the next year, as a brand new antler starts growing, an extra branch can appear in nearly the exact same spot as the nick. Now, it's an entirely new antler, but somehow the deer's body still remembers where it happened, and scientists still don't know where that memory is being stored.