2,477 results
- Humans
From the March 11, 1933, issue
GREAT LION OF LA BREA Bigger by a fourth than the proudest lion that walks the veldt today were the tallest of the great lions of California a hundred thousand years ago. Rivaled in size only by the short-faced bears whose bones have been found with theirs in the La Brea tar-pits, they could confidently […]
- Paleontology
First Family’s last stand
New evidence indicates that about 3.2 million years ago, at least 17 Australopithecus afarensis individuals were killed at the same time by large predators at an eastern African site.
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Bacteria give carpet a nasty smell
A compound produced by bacteria may be responsible for the "cat urine" smell of some new carpeting.
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Silence of the Xs
Does junk DNA help women muffle one X chromosome?
- Paleontology
Ratzilla: Extinct rodent was big, really big
Scientists who've analyzed the fossilized remains of an extinct South American rodent say that the creatures grew to weigh a whopping 700 kilograms.
- Earth
Cigarette smoke can harm kitty, too
Compared with animals living in smokefree homes, cats who lived for some time with a smoker at least doubled their risk of developing the feline analog of the cancer non-Hodgkin's lymphoma.
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19100
This article mentions that “toxicology studies suggest that crabs, birds, rodents, and cats face little risk from the baits.” Acetaminophen in fact is lethal to cats. Cats may be safe, however, because of their preference for live food. John WeissDallas, Texas
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19157
This report reminded me of similar studies demonstrating longer life in people who own pets. Has anyone compared these studies and looked for causes of the increased life span in common in these two populations? Such things as increased opportunities of emotional expression, getting out of the house on a regular basis, or adapting to […]
- Health & Medicine
Pet exposure may reduce allergies
Exposing children to cats or dogs at an early age may make them less prone to allergies later in life.
- Physics
Interacting with Physics
Drag an electric charge to see how it affects a nearby water molecule. Fool around with a laser to cool an atom. The University of Colorado’s Physics 2000 Web site relies heavily on interactive animations to demonstrate important concepts and discoveries in modern physics. Topics range from X rays and CAT scans to the quantum […]
- Agriculture
Mad Cow Future: Tests explore next generation of defenses
As Canadian health officials investigate mad cow disease within the country's borders, researchers are already working on the next generation of defenses.
