News tagged with cichlid
Fish study turns colour vision theory inside out
(PhysOrg.com) -- Neurobiologists at the Queensland Brain Institute have found that animals are not always as brightly coloured as they seem - at least not to their counterparts.
Jun 22, 2010 |
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Genetic conflict in fish led to evolution of new sex chromosomes
University of Maryland biologists have genetically mapped the sex chromosomes of several species of cichlid (pronounced "sick-lid") fish from Lake Malawi, East Africa, and identified a mechanism by which new ...
Oct 01, 2009 |
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Lopsided fish show that symmetry is only skin deep
Putting function before form, members of the Perissodinus genus of fish have developed a hugely lopsided jaw that provides a distinct feeding advantage. Research published in the open access journal BMC Bi ...
Jan 25, 2010 |
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Female fish -- and humans? -- lose interest when their male loses a slugfest
You may think of your love for your mate as the noble emotion of a pure heart, but some primitive parts of your brain are taking a decidedly more pragmatic approach to the subject, according to Stanford biologists.
Nov 24, 2010 |
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Infidelity produces faster sperms
Until now, it has been difficult to prove that fast-swimming sperms have an advantage when it comes to fertilizing an egg. But now a research team at Uppsala University can demonstrate that unfaithful females of the cichlid ...
Biology /
Jan 20, 2009 |
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Female fish abandoned by males to raise offspring on their own
Caring for children can be a tough job, particularly if you are a female cichlid fish.
Sep 20, 2010 |
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Aquarium fishes are more aggressive in reduced environments, a new study finds
An angry glare from the family goldfish might not be the result of a missed meal, but a too-humble abode. Fish in a cramped, barren space turn mean, a study from Case Western Reserve University has found. Ornamental fishes ...
Sep 22, 2011 |
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The importance of being helpful -- Cooperative cichlids boost their own reproductive success
Subordinate individuals living within a group of vertebrates sometimes assist a more dominant pair by helping to raise the dominant pair's offspring and this has been shown to occur among subordinate female ...
May 15, 2009 |
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Fish facing reflections become feisty but fearful
Fish become feisty but fearful when facing themselves in a mirror, according to two Stanford biologists.
May 17, 2010 |
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B chromosomes affect sex determination in cichlid fishes
B chromosomes have a functional effect on sex determination in a species of cichlid fishes from Lake Victoria, according to a study by Japanese researchers to be published in open-access journal PLoS Genetics on August 18th, ...
Aug 18, 2011 |
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Tilapia feed on Fiji's native fish
The poster child for sustainable fish farming -- the tilapia -- is actually a problematic invasive species for the native fish of the islands of Fiji, according to a new study by the Wildlife Conservation ...
Jan 12, 2010 |
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