Jonathan Wolfe makes delicate puzzle boxes out of acorns. Each one opens only when a particular area is tapped or a wire is pulled. One in the video takes the form of a Matryoshka doll with a smaller acorn puzzle box inside.

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Remember the post about where have all the acorns gone? Well, we’ve found some of ‘em.

When a microwave radio transmitter stopped working, engineers discovered that the antenna had been used as acorn storage device by woodpeckers.

– via reddit

From the Upcoming ueue, submitted by Minnesotastan.

"I’m used to seeing so many acorns around and out in the field, it’s something I just didn’t believe," he said. "But this is not just not a good year for oaks. It’s a zero year. There’s zero production. I’ve never seen anything like this before."

The absence of acorns could have something to do with the weather, Simmons thought. But he hoped it wasn’t a climatic event. "Let’s hope it’s not something ghastly going on with the natural world."

To find out, Simmons and Arlington naturalists began calling around. A naturalist in Maryland found no acorns on an Audubon nature walk there. Ditto for Fairfax, Falls Church, Charles County, even as far away as Pennsylvania. There are no acorns falling from the majestic oaks in Arlington National Cemetery.

"Once I started paying attention, I couldn’t find any acorns anywhere. Not from white oaks, red oaks or black oaks, and this was supposed to be their big year," said Greg Zell, a naturalist at Long Branch Nature Center in Arlington. "We’re talking zero. Not a single acorn. It’s really bizarre."

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