ld50 tobacco Frontiers Marketing of nicotinamide as nicotine

slaves lugged each stack to the "stringer" or "looper", typically a female slave, who bundled each stack of leaves

You'll recognize them by their giant size (up to 4 inches long) and the characteristic "horn" on their rear end

If you see large swaths of your tomato plants that suddenly (were talking overnight or within a few hours) look like all the leaves have been eaten away, put on your specs and start searching for hornworms

for two days, but less than a week

Students* from Oldenburg's Ccilienschule (high school) created an interactive map depicting the transport of coffee and cocoa in the 19th century

The Yale Journal of Biology and Medicine