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Slide Presentations and Lectures


Lost Worlds of Ancient Gondwanna: Recent Explorations

A Slide-lecture Presentation
by D. Bruce Means, Ph.D.

blue tree frog Diurnal Microhylid Blue-eyed treefrog

This hour-long slide-lecture presentation features the exotic, mysterious, remote, and unexplored rainforest and cloudforest vastness of western Guyana. Come along with Dr. Means on two of his recent explorations of an ancient and poorly explored part of the heart of South America, which used to be connected with Africa in the supercontinent Gondwanna, more than 100 million years ago.


In 2003, Dr. Means participated in a month-long expedition through trackless rainforest to the "Prow" of the famous 9,000-foot high, flat-topped mesa, Mt. Roraima, the inspiration for Arthur Conan Doyle's novel, Lost World. On an elevational transect up Mt. Roraima, Dr. Means discovered two species of frogs new to science plus many other interesting frogs, carnivorous plants, wildlife, and breathtaking scenery. Dr. Means and this expedition was recently featured in an hour-long National Geographic Ultimate Explorer documentary film entitled, "Into the Lost World," that premiered in February 2003.


Later in 2003, Dr. Means returned alone with one companion/helper for another month-long expedition on-foot with backpack to another remote and entirely unexplored mesa called the Mt. Wokomung Massif. Along another elevational transect he discovered about six species of frogs new to science and made many new natural history observations of various plants, animals, and ecology of the region.


Come hear his lecture on this remote and forgotten corner of the world, a repository of some of the world's rich biodiversity, and see his high quality images of the animals, plants, and scenery of this uninhabited tropical paradise.