1.0Harvard Gazettehttps://test.news.harvard.edu/gazetteharvardgazettehttps://test.news.harvard.edu/gazette/story/author/harvardgazette/Animal interaction behind ‘Cambrian Explosion’? — Harvard Gazetterich600338<blockquote class="wp-embedded-content" data-secret="jjuY9YeIxp"><a href="https://test.news.harvard.edu/gazette/story/2008/05/animal-interaction-behind-cambrian-explosion/">Animal interaction behind ‘Cambrian Explosion’?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://test.news.harvard.edu/gazette/story/2008/05/animal-interaction-behind-cambrian-explosion/embed/#?secret=jjuY9YeIxp" width="600" height="338" title="“Animal interaction behind ‘Cambrian Explosion’?” — Harvard Gazette" data-secret="jjuY9YeIxp" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script>
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Harvard Professor of Biology and of Geology Charles Marshall presented his Tuesday (April 29), suggesting that it was an increase in interactions between species, such as predation, that drove an escalating evolutionary process that led to the development of teeth and claws and the wide variety of characteristics that we see among Earth’s animals today.