In the Brazilian Amazon, the soil is poor. So farmers resort to slashing and burning trees to enrich the soil. It's common wisdom that the natives have always practiced slash and burn techniques. But beneath the rainforest, small patches…
A story about winter forage for the Rocky Mountain elk of Montana. During the summer, elk use a variety of habitats at different elevations. But winter snow cover limits their food, primarily to bunchgrasses found in valleys -- valleys that…
https://www.egofelix.com/wp-content/uploads/2012/12/Elk-Bunchgrass-and-Weeds.jpg351570Andrew Chttps://www.egofelix.com/wp-content/uploads/2018/05/logo2018.pngAndrew C2012-12-14 19:12:112018-06-08 11:26:21Elk, Bunchgrass, and Weeds
A sign in a Hong Kong market announces the catch of the day: silky shark fins. At an exorbitant price, they are the key ingredient in the popular shark-fin soup and a key item for fishermen to bring to shore. But is the silky shark fin in the…
https://www.egofelix.com/wp-content/uploads/2018/05/logo2018.png00Andrew Chttps://www.egofelix.com/wp-content/uploads/2018/05/logo2018.pngAndrew C2014-12-09 10:14:062018-06-08 11:13:01Under the fins skin - silky shark fins
Imagine you're an astronomy student gathering data, and suddenly your radio telescope receives regular signals from deep space. It happened to Jocelyn Bell in 1967. This is for Wednesday, November 28. On today's date in 1967, a new kind…
Flash floods are hardly unheard of in the Catskills. Our mountains commonly stand in the way of weather patterns, forcing rising air masses to generate sudden thunderstorms. A heavy downpour, in the upper, narrower valleys of the higher Catskills,…
It's six-o'clock and I hear a rattling sound outside my kitchen window. Nerve impulse from ear to brain make an instant identity match with the Baltimore oriole. He's announced his arrival at my nectar feeder, giving a few clear notes of…
https://www.egofelix.com/wp-content/uploads/2012/05/Do-You-Whistle-At-Your-Birds.jpg347520Andrew Chttps://www.egofelix.com/wp-content/uploads/2018/05/logo2018.pngAndrew C2014-08-06 22:53:562018-06-08 10:46:40Do You Whistle At Your Birds?
You can follow the War Trail of the Comanches today by driving Highway 385. If you do, you'll come to the main entrance to Big Bend National Park. According to Dr. Gentry Steele, Professor of Anthropology at Texas A&M University, "... Big…
https://www.egofelix.com/wp-content/uploads/2012/07/big-bend-hotsprings.gif150189Jorjette Chttps://www.egofelix.com/wp-content/uploads/2018/05/logo2018.pngJorjette C2012-07-03 19:59:172018-06-05 15:09:41Big Bend National Park: Water and Rocks
Only 150 years ago, Big Bend wasn't as harsh an environment as it is today. That was before ranchers settled the area in the late 1800s. They raised cattle to feed the U.S. soldiers stationed at the forts of southwest Texas. Forts with names…
https://www.egofelix.com/wp-content/uploads/2012/07/Big-Bend-National-Park-Ranching.jpg534800Jorjette Chttps://www.egofelix.com/wp-content/uploads/2018/05/logo2018.pngJorjette C2012-07-04 17:30:322018-06-05 11:44:11Big Bend National Park: Ranching
If you hike from the desert floor near Panther Junction up to the Chisos Mountains, you'll notice that the plants change quickly as the elevation increases. Big Bend elevations range from about 2,000 feet along the Rio Grande to over 7,000 feet…
https://www.egofelix.com/wp-content/uploads/2012/07/big-bend-centuryplant.gif150154Jorjette Chttps://www.egofelix.com/wp-content/uploads/2018/05/logo2018.pngJorjette C2012-07-04 07:07:392018-06-05 11:44:10Big Bend National Park: Adaptations
Big Bend is rich in fossils. Probably the most famous and awesome is that representing a winged creature called a Pterosaur. This extinct dinosaur weighed about 150 pounds and had a 36-foot wing span. In other words, the distance from one wing…
https://www.egofelix.com/wp-content/uploads/2012/07/big-bend-dorganruins.gif191150Jorjette Chttps://www.egofelix.com/wp-content/uploads/2018/05/logo2018.pngJorjette C2012-07-04 03:06:222018-06-05 11:44:05Big Bend National Park: Fossils
In the past two million years, North America has experienced the coming and going of ice ages. During the ice ages, the Chihuahuan Desert existed only in our modern-day Mexico, in the southernmost part of its current range. Then, about 11,000…
https://www.egofelix.com/wp-content/uploads/2012/07/big-bend-desertgrasslands.gif184150Jorjette Chttps://www.egofelix.com/wp-content/uploads/2018/05/logo2018.pngJorjette C2014-10-18 03:42:532018-06-05 11:44:04Big Bend National Park: Making a Desert
Overview: Early Hominids: The first fossils of erect bipeds with our general body shape (called hominids) appear in Central Africa about 6.5 million years ago (mya). Until recently, the hominids were thought to have been limited to East Africa,…
https://www.egofelix.com/wp-content/uploads/2012/07/neanderthalsapiens.jpg800493Andrew Chttps://www.egofelix.com/wp-content/uploads/2018/05/logo2018.pngAndrew C2012-07-03 10:15:292018-06-05 09:53:31The Origin of Modern Humans: Multiregional and Replacement Theories
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