6,698 results
- Paleontology
Old Colonies: Ancient formations are termites’ legacy
New analyses of mysterious pillars at two sites in southern Africa suggest that the sandstone features are petrified remains of large, elaborate termite nests.
- Paleontology
Early Biped Fossil Pops Up in Europe
A newly described, nearly complete 290-million-year-old fossil of an ancient reptile pushes back the evidence for terrestrial bipedalism by 60 million years.
- Health & Medicine
Drugs slow aging in worms
Drugs that defuse so-called free radicals lengthen a worm's life span by more than 50 percent.
- Animals
Second bird genus shares dart-frog toxins
Researchers have found a second bird genus, also in New Guinea, that carries the same toxins as poison-dart frogs in Central and South America.
- Ecosystems
Will Climate Change Depose Monarchs? Model predicts too-wet winter refuges
A computer analysis suggests that eastern monarch butterflies may not be able to tolerate the increasingly moist climate in Mexico, their current wintering site.
- Earth
Paved Paradise?
The precipitation-fed runoff that spills from impervious surfaces such as buildings, roads, and parking lots in developed areas increases erosion in streams, wreaks ecological havoc there, and contributes to urban heat islands.
- Humans
Science News of the Year 2004
A review of important scientific achievements reported in Science News during the year 2004.
- Agriculture
The Ultimate Crop Insurance
A new treaty renews hope that the waning diversity in agricultural crops can be slowed, and important genes preserved, both in the field and in gene banks.
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Original Kin: Six-legged bugs may have evolved twice
Insects may have evolved independently from other six-legged land bugs and may be more closely related to crustaceans than to their fellow so-called hexapods.
- Health & Medicine
Cluster Buster: Might a simple sugar derail Huntington’s?
A study in mice with a disease resembling Huntington's shows that a simple sugar impedes the protein aggregation that kills brain cells.
- Animals
Moonlighting: Beetles navigate by lunar polarity
A south African dung beetle is the first animal found to align its path by detecting the polarization of moonlight.
- Animals
African cicadas warm up before singing
The first tests of temperature control in African cicadas have found species with a strategy that hogs energy but reduces the risk of predators.
