Fly Cruises Smell Arena  Science Animals Biology 

A Fly Cruises the Smell Arena  for Science

By Amanda Alvarez @neuroamanda Banana essence. Apple cider vinegar. Almond jelly dessert. Mentsuyu. These are just some of the smells tested on flies in Hokto Kazama’s lab—you might recognize the last one as the soy sauce-based broth in noodle soup. These smells and more are processed in a part of the fly brain only slightly bigger than half the width of a human hair. (We’re talking about fruit flies here, not house flies, so everything is even smaller than you imagined.) What goes on in the antennal lobe, as it’s…

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Chemistry on EH Science Biology 

Handshakes May Engage Our Sense of Smell

Why do people shake hands? A new Weizmann Institute study suggests one of the reasons for this ancient custom may be to check out each other’s chemistry. Even if we are not consciously aware of this purpose, handshaking may provide people with a socially acceptable way of communicating via the sense of smell. Handshakes: Nice to Sniff You Not only do people often sniff their own hands, but they do so more actively and for a much longer time after shaking someone else’s hand, the study has found. “It’s well…

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