8,280 results
8,280 results for: Fish
- 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
The secret appetite of cleaner wrasses
The little reef fish that nibble parasites off bigger fish that stop by for service actually prefer to nibble the customers.
- Animals
Some female birds prefer losers
When a female Japanese quail watches two males clash, she tends to prefer the loser.
- Earth
Extracting Estrogens: Modern treatment plants strip hormone from sewage
New research helps explain why state-of-the-art sewage treatment facilities are more effective than conventional plants at removing certain sex hormones from sludge.
- Ecosystems
Shark Serengeti: Ocean predators have diversity hot spots
The first search for oceanic spots of exceptional diversity in predators has turned up marine versions of the teeming Serengeti plains.
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Did cavefish trade eyes for good taste?
Certain blind cave-dwelling fish in Mexico may have developed more taste buds and bigger jaws as they lost their eyes.
- Animals
Musical Pairs: Egg-deploying bird species divide for a song
A new genetic analysis bolsters the idea that musical taste, rather than geography, split Africa's indigobirds into multiple species.
- Earth
Indonesian reefs fell prey to fires
The fires that swept through Indonesian rain forests late in 1997 apparently laid waste to some marine ecosystems, as well.
- 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.
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Estrogen Shock: Mollusk gene rewrites history of sex hormone
Estrogen and similar hormones evolved much earlier than thought.
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Breathless: Reef fish cope with low oxygen
A coral reef may look like a high-oxygen paradise, but the first respiration tests of fish there show an unexpected tolerance for low oxygen.
- Health & Medicine
Do Arctic diets protect prostates?
Marine diets appear to explain why the incidence of prostate cancer among Inuit men is lower than that of males anywhere else in the world.
