This interactive feature introduces viewers to the various types of caves, and describes Karst activity, the process by which naturally-occurring acidic solutions form cavities in soluble rocks. Other topics include...
Topographic maps that display three-dimensional landscapes on two-dimensional surfaces can offer a great deal of spatial information in minimal space. However, it is often difficult for people to interpret the features...
This video segment, adapted from a NOVA broadcast, discusses the extreme environments that caves present for living organisms, and the unique strategies for survival adopted by communities of cave-dwelling microbes that...
Large oil spills are not a common occurrence. When a tanker runs aground or collides with another vessel and releases its cargo to the sea, it's often major news, especially if the spill is near land. The images in this...
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