The bugs in question can be curbed by adding either of two substances to cattle feed, a chemical called 3-nitrooxypropanol, or a seaweed called Asparagopsis taxiformis.
It was a lovely soft September afternoon — a day to lie under a Roman stone-pine, with one's eyes on the sky, and let the cosmic harmonies rush through one.
But lycopods were also the earliest vascular plants, which means they were the first plants to contain xylem, a special tissue that moves water and nutrients from the roots to the leaves.