4.3 Dutch elm disease

Not all change is a direct result of human intervention. Sometimes changes can occur over which we have little control. One such example is the case of Dutch elm disease (so-called because most of the early studies of the disease were carried out in Holland, although the disease was first observed in France in 1918). The disease is caused by a fungus, Ceratocystis ulmi, that has the elm, Ulmus procera, as its only habitat and food source. Spores of the fungus are carried by the
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Copyright © 2013 The Open University

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This remarkable four minute video shows the reunion of a man and the gorilla he raised when he visits five years after the ape was released into the wild. A touching video and one that could be used by teachers to show the unique bond between animals and people and to note that these animals are being hunted by poachers.
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were crammed into each. Later, the bombing of Hamburg by the RAF provided the Nazis an opportunity to blame the Jews, later leading to Jewish persecution and the slaug

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Notre Dame OpenCourseware (OCW) offers free online educational resources for the course "Primate Behavior" in the Department of Anthropology. This course explores the social lives of the nonhuman primates. It begins with an introduction to primate evolution and taxonomy and behavioral ecology. It further examines select groups of living primates through topics such as conservation, social behavior, cooperation/competition, reproduction, ethnoprimatology, and evolution of social organization.
Author(s): Agustin Fuentes

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Copyright 2012, by the Contributing Authors

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Author(s): Scholberg, Kate,Dourmashkin, Peter

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Edith Widder has been exploring the deep sea for thirty years. When she descended for the first time, she turned off the lights of her submersible hoping to see marine organisms that make light--bioluminescent animals. Widder says she wasn't prepared for the light show she encountered and has been building tools to document bioluminescence ever since. (3:46)
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In this lesson, students will identify the Earth's natural resources and classify them as renewable or non-renewable. They will simulate the distribution of resources and discuss the fairness and effectiveness of the distribution. Students will identify ways that they use and waste natural resources, and they will explore ways that engineers interact with natural resources.
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