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Lazarus taxa” is an appropriate name for species that seem to have been resurrected. However, the Lazarus whom Jesus raised from the dead was a householder who lived with his sisters, Mary and Martha, in Bethany (John 11). The beggar named Lazarus appeared in a parable that Jesus told to his followers (Luke 16). Linda […]
- Paleontology
Back from the Dead?
The long-term disappearance of creatures from the fossil record and their later reemergence can provide insights into ancient environmental conditions and the trustworthiness of the fossil record itself.
- Humans
Letters from the November 17, 2007, issue of Science News
Unequal opportunity “The Wealth of Nations” (SN: 9/1/07, p. 138) describes the difficulty of moving from exporting one product to exporting another in terms of a “distance” between various products. I would imagine, however, that a nation that already manufactures computers, for example, could easily move into calculators, but that the reverse might not be […]
- Math
Good Stories, Good Math
Young children who show sophisticated story-telling skills go on to demonstrate greater mathematical ability.
- Humans
From the November 6, 1937, issue
Giant electrical generators take shape in Pittsburgh, astronomers puzzle over unusual stellar spectra, and a dinosaur ancestor from Texas visits Harvard.
- Humans
Where’s the Fire?
The National Interagency Fire Center tracks big wildfires blazing around the United States and identifies—via its InciWeb—which ones are contained, along with running totals for acres scorched so far this year. The site offers tables of multi-year fire records, interesting stats, as well as maps of current outbreaks. Go to: http://www.nifc.gov/fire_info.html
- Animals
Mr. Not Wrong: Not my species? Not a problem
Female toads that accept mates of another species in tough times may be looking after their own interest.
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Ladies First: Genes skew sex ratios in evolutionary struggle
A gene in fruit flies favors the birth of females, until another gene comes along to restore balance between the sexes.
- Earth
Yellowstone Rising: Magma floods into chamber beneath park
Some parts of the terrain in Yellowstone National Park have been rising as much as 7 centimeters per year as molten rock wells up beneath the park.
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Not Like Clockwork: High-fat diet disrupts daily routines of mice
Fatty diets disrupt the sleep and metabolic cycles of mice by changing the activity of genes.
- Agriculture
Silencing Pests: Altered plants make RNA that keeps insects at bay
Engineered plants make genetic material that disables critical genes in insects that eat the plants, offering a possible new strategy for agricultural-pest control.
- Astronomy
Ray Tracing: Energetic cosmic rays linked to giant black holes
New observations suggest that ultrahigh-energy cosmic rays originate in the cores of nearby galaxies harboring supermassive black holes.
