8,313 results
8,313 results for: Fish
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19691
Tiktaalik may not have left the water by choice, to avoid predators, or to get more oxygen. Instead, it might have found itself left behind on a muddy floodplain each time waters receded with the tide. Tiktaalik ‘s “limbs” were probably first developed to survive in an environment that required bracing and stabilizing against currents, […]
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19375
This article, or at least part of it, could have been titled “Danger on Dock” or maybe “Danger under Dock.” After reading about how chromated-copper arsenate (CCA) is leached from the wood, I began wondering how it affects aquatic organisms. Many fish, especially bluegills and other sunfish, make these docks their preferred habitat. If not […]
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19405
This article reminded me of the old quote: “A fishing lure is any combination of metal, plastic, wood, feathers, hair, or other manmade or natural material attached to a hook (or hooks) and designed to attract fishermen.” To wit: Decades ago, to impress an office associate who was a trout-fishing traditionalist as to how random […]
- Life
Massive count a drop in the bucket
As the decade-long Census of Marine Life totes up thousands of new species, it leaves much yet to discover in the world’s oceans.
- Life
Will groom for snuggles
Sooty mangabey and vervet monkey mothers charge a price, dictated by market forces, that other females must pay to touch their babies.
- Animals
DEET of the sea
Before turning in for the night, some reef-dwelling fish apply a slimy mucus shield to deter biting bugs.
- Health & Medicine
Fish oil fails to hold off heart arrhythmia
Atrial fibrillation patients who took capsules rich in omega-3 fatty acids had about as many episodes as those getting a placebo, a study finds.
- Earth
Shuttle images reveal Egypt’s lost great lake
Radar studies of desert drainage patterns point to ancient oases in the Sahara.
- Chemistry
Bacterium grows with arsenic
A microbe appears to substitute a normally toxic element for a basic ingredient of life, raising intriguing questions about the limits of biochemistry.
- Math
Unnatural selection
Inflicting damage on targeted species can help preserve perturbed ecosystems.
- Earth
Extinctions breed carbon chaos
Massive die-off left ecosystems vulnerable, an analysis suggests.
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