When Sir Walter Raleigh led an expedition to South America in the 1595, he and his men were famously greeted by a hail of poisoned arrows. The tips of the arrows were coated with curare, a poison made ...

Amber delivers a slice of ancient life, showing us everything from early predation to the earliest preserved erect penis. Now, in a 30-year-old amber collection, scientists have found the earliest ...

IN this pamphlet the author describes the researches made by himself and by his brother, Sir Robert Schomburgk, into the modes of preparation of urari. Although an arrow-poison is prepared by a number ...

Delicate, though possibly deadly, flowers trapped in amber for some 30 million years have been discovered, scientists report. The fossilized plants are asterids, which make up about one-third of the ...

Strychnos is the largest genus of the Loganiaceae with about 200 species distributed across Africa (including Madagascar), the Americas, Australia and Asia. Recent molecular phylogenetic effort at ...