Search Results for: Invertebrate
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703 results
703 results for: Invertebrate
- Animals
Ant Traffic Flow: Raiding swarms with few rules avoid gridlock
The 200,000 virtually blind army ants using a single trail to swarm out to a raid and return home with the booty naturally develop three traffic lanes, and a study now shows that simple individual behavior makes the pattern.
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Evolution may not be slow or random
Studies of fruit flies taking over the New World and stickleback fish adapting to Canadian lakes suggest that evolution can proceed quickly and take predictable paths.
- Science & Society
Science News of the Year 2003
A review of important scientific achievements reported in Science News during the year 2003.
- Humans
Science News of the Year 2003
A review of important scientific achievements reported in Science News during the year 2003.
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Mussel Muzzled: Bacterial toxin may control pest
A toxin made by bacteria could help stop the spread of zebra mussels.
- Animals
Dogged Dieting: Low-cal canines enjoy longer life
The first completed diet-restriction study in a large animal shows that labrador retrievers fed 25 percent less food than those allowed to eat as much as they desired tend to live longer and suffer fewer age-related diseases.
- Paleontology
New fossils threaten an extinction theory
Recent discoveries of long-dead marine invertebrates call into question the occurrence of a catastrophic global extinction during the Late Devonian period, between 385 and 375 million years ago.
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Globin Family Grows: Blood-protein relative is in all tissues
Researchers discovered a relative of the blood protein hemoglobin in all the body's tissues.
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18963
I was distressed to read that Science News thinks there are no steroid hormone receptors in insects. Granted, their reproduction is not regulated by steroids, but ecdysone, the molting hormone, is certainly a steroid. There is some evidence that juvenile hormone, the hormone that regulates development and sometimes reproduction, acts through a steroidlike-receptor pathway. Other […]
- Ecosystems
Deprived of Darkness
From anecdotal reports of little-studied phenomena, researchers suspect that artificial night lighting disrupts the physiology and behavior of nocturnal animals.
- Health & Medicine
Puffer Fish Genomes Swim into View
The tightly packed genomes of two puffer fish species have been deciphered.
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Urchins of the Seas
If you haven’t really been paying attention for the last 450 million years or so of Earth’s history, London’s Natural History Museum offers a tidy way to catch up with a diverse, venerable group of marine invertebrates known as echinoids. Spectacular color images highlight important distinguishing characteristics of each type of sea urchin. Find out […]
