Tag Archives | evolution

Kurz and Allison’s 1891 representation of the Battle of Franklin (November 30, 1864) during the American Civil War. Image credit: U.S. Library of Congress.

Perpetual War

In the American Civil War, the United States fought itself in a bloody struggle that dragged on for four years. A new study out of the University of California, Santa Cruz shines light on an even longer – and seemingly endless – conflict within ourselves. This internal struggle takes place within our genome, between an…

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Bristletail sensilla (left) lack the grooves that often house olfactory neurons, which contrasts with those in firebrats (middle) and leaf insects (right).  Missbach et al. eLife (2014).

When Did Insects Learn to Smell?

Summer beckons in the northern latitudes. As temperatures warm, beachgoers will flood sandy coasts, carrying bags of potato chips and sandwiches. Picnics will sprout in parks supplied with pink watermelon wedges and soda pop. Feasts ripe for people, and undoubtedly bugs too. In mere seconds flies and bees can swarm, but how do they sniff…

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