The Inner Life of the Cell — The Extended Version

This item was originally posted in September, 2006. It is now part of my blog recycling program. Because I have new readers of The GeoChristian, I will occasionally go back and re-use some of my favorite blog entries. There is a version of this video on YouTube that I don't think was available last year. …

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A wild world of a different sort

Back in October, I wrote a post about the idea of introducing large mammals (elephants, camels, lions, and so on) into the high plains of the United States (see Pleistocene mega-fauna -- coming to a drive-thru safari park near you). The idea is to somewhat restore the pre-human ecosystem by bringing in mammals that went …

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Wild World

At the middle school and high school level, biology textbooks usually have a section on biomes, which are large regions of the Earth that have distinctive communities of plants and animals. Examples of biomes include desert, tropical rainforest, temperate grasslands, and tundra. These biomes can be subdivided into smaller ecoregions, which have more specific assemblages …

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Electron transport chain and ATP synthase animations

ATP synthase moves me to worship the Creator. Every cell on Earth, from simple bacteria to human brain cells, needs a molecule called ATP (adenosine triphosphate; pictured to the left) in order to do a wide variety of tasks. ATP is used as the cell's energy molecule; the source of energy for everything from cell …

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Pleistocene megafauna — Coming to a drive-thru safari park near you

North America just isn't the same without its native camels, horses, mastodons, and saber-toothed cats. Not all of these can be brought back, but how about reintroducing what we can into the wild? And substituting elephants for mastodons, and lions for saber-toothed cats. That is the proposal in the November issue of The American Naturalist. …

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eNature — Online Field Guide

A good online field guide—with images and information about 5500 different species—is at eNature.com, which is produced by the National Wildlife Federation. With sections on birds, mammals, reptiles, amphibians, fish, insects, spiders, seashells, wildflowers, and more; eNature is a good site for those of us who don't have a complete shelf of field guides (I …

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