Episode

60-Second Science

Scientific American

Science & Medicine, Natural Sciences, Technology

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Science & Medicine 22
Natural Sciences 7

Leading science journalists provide a daily minute commentary on some of the most interesting developments in the world of science. For a full-length, weekly podcast you can subscribe to Science Talk: The Podcast of Scientific American . To view all of our archived podcasts please go to www.scientificamerican.com/podcast

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Plant Thorns Increase When Defense Needed

October 17th, 2014

Episode 139 of 601 episodes

In areas with few herbivores acacia plants don't bother to churn out many of the off-putting thorns. Cynthia Graber reports

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