Usually, an ambigram takes me about an hour from the moment of tackling the challenge with crude pencil sketches until the final artistic product has been rendered in felt-tip pen, in full color. Here ...

Central pattern-generating networks produce the rhythmic motor discharges that underlie many repetitive movements, such as those in locomotion, respiration and feeding 1. Synaptic inhibition is ...

On Election Day 2012, Colorado voters approved a ballot initiative legalizing the recreational use and sale of cannabis, making the state the first in America to do so. Twenty-three other states would ...