Picking your own food in the wild produces no easier or tastier result than it does with berries. And there's more than you might think out there, both in terms of sheer volume and types. Here's how to find the good ones.
Color in nature is a strange thing. Usually, we see directly reflected pigments, but some animals and plants have evolved ways of displaying colors without actually having those colors — what's known as structural color. This is pretty well understood in insects, but it happens in plants, too. In fact, the most…
Yet another field of expertise has been wiped out by some steel pincers—strawberry-pickers. Japan's robot detects which berries are at least 80 per cent red, and picks them gently off the vine.