As the world's drug habit shows, governments are failing in their quest to monitor every London window-box and Andean hillside for banned plants. But even that Sisyphean task looks easy next to the fight against synthetic drugs. No sooner has a drug been blacklisted than chemists adjust their recipe and start churning out a subtly different one.

a flexanimous orator

Consistent with this, VR1-knockout mice can eat capsica all day, even though mucosal injuries still occur.

The plaintive whistle of the Hawai‘i mamo, a shy bird then found only on Hawai‘i Island, was heard only rarely by the mid-1880s, as cattle ranching and plantations altered the forest canopies where this nectar-loving finch once thrived.