Today Ivor is a silk moth. A species of moth that has actually been domesticated and no longer occurs in the wild, Ivor spent his time as a puppy eating mulberry leaves and fattening himself up for transformation, then made a silk cocoon to transform in. Ivor is old enough now that he has probably already done that, and is now a moth. While he has wings, he can't fly. Most silk moths also don't eat, but Ivor has clearly found a way around this.
Also, one of the interns here, Elizabeth, took a bunch of photos of Ivor on his last day. Thanks Elizabeth! Here's one of them:
