Now, that’s odd…
Appy and a friend, and hen. CB/MDP
(For instance, do the tangles of wild roses also help poison ivy grow somehow? Almost always found together. And how do lilac inhibit things growing under them? No poison ivy will grow under a lilac shrub when it is well established.)
Curiosity about why a young woman working around cows did not contract cowpox led to discovery – knowledge applied created vaccines, which save lives, both human and animal.