Limited resources, another knock-on effect from the ongoing conflict, also threatened to upend the men’s carefully laid plans. While Moisienko drove around to dozens of Kyiv’s home hardware stores in search of plastic boxes to transport the collection’s vascular plants, Khodosovtsev returned to Kherson equipped with little more than a headlamp strapped across his brow and a backpack filled with the same household tools you might use to move apartments.On this second trip, the magnitude of the task became clear to Khodosovtsev. He had 700 boxes to evacuate. On his first incursion, it had taken him 15 minutes—and way too much tape—to wrap, stack, and rope together half a dozen boxes of samples. At this rate, the botanist said, he’d be blowing past the three days earmarked for this section o...