8,297 results
8,297 results for: Fish
- Life
Fish glowing red
Plenty of reef creatures fluoresce red, even where seawater absorbs red sunlight.
- Life
First lipid hormone discovered
An omega-7 fatty acid made by fat and liver cells acts as a hormone, even mimicking the health benefits of insulin.
- Life
FDA releases guidelines for genetically modified animals
Draft rules lay out policies for approving altered animals, including those used for food.
- Humans
Stone Age seafood fans
Excavations in two Gibraltar caves suggest that Neandertals, like modern humans, regularly visited the Mediterranean shore to complement a land-based diet with seafood
- Life
Old fish, new fish, red fish, blue fish
A difference in vision in cichlids in Lake Victoria could be pushing a species to split into two.
- Life
Bicoastal Atlantic bluefin tuna
Mediterranean and western Atlantic bluefin tuna spend more time in mixed groups than previously thought, suggesting management strategies need to be revisited.
- Life
Tough times for mammals
Between a fifth and a third of the world’s mammal species face the threat of extinction.
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18922
“Dyslexia gets a break in Italy” brought to mind a remark I learned in grade school decades ago. It is: In English, the word fish can be spelled ghoti. That’s gh as in tough, o as in women, and ti as in nation: “ghoti” = “fish.” English can be difficult. Norman C. Peterson Sata Monica, […]
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18931
Your article on marine no-take zones overly simplifies a much more complicated problem. The idea that at least some kinds of fish might be more plentiful and larger if they are not harvested over a period of years doesn’t really need much scientific study. However, this benefit is probably limited to specific species. For many […]
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18938
In grad school, I read and learned from Ernst Mayr’s Populations, Species, and Evolution (1963, 1970, Harvard University Press). I think that “Alarming butterflies and go-getter fish” extremely simplifies Mayr’s position on speciation. The article says that Mayr focuses solely on geographic separation, “allopathic speciation.” This ignores the fact that Mayr discussed a variety of […]
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18943
“Salmon hatcheries can deplete wild stocks” ignores a basic fact. Hatchery stocks came from wild stocks. Their DNA is the same. There is an abundance of underused habitat in our northwest rivers. Some hatchery salmon would use these habitats if they were left alone. Instead, hatchery fish are clubbed to death to prevent their mixing […]
- Animals
How the ghost shark lost its stomach
The lack of a digestive organ in fish and other animals is linked to genetics.
