made by a single student...He made the senses and mental faculties of insects his chief study. His work on insects has served the study of human psychology, and is in itself perhaps the most important contribution to insect psychology ever made by a single student."

The Senses of Insects 1885 (1908)

In an experiment to better understand ant communication, in 1886, Forel removed the antennas of a large number of ants of different species, then placed them in a box in order to observe their behaviour. He found that the ants without

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