After death, male guppies can keep on siring offspring because females store sperm for so long. As a result, a living male in a stream in Trinidad can end up competing with long-gone fish from his ...
Social Structure and co-operative Interactions in a Wild Population of Guppies (Poecilia reticulata)
In contrast to the substantial number of theoretical papers that have examined the mechanisms by which cooperation may evolve, very few studies have investigated patterns of co-operation in natural ...
image: Male guppies exposed to predators in the wild or in captivity have heavier brains than those living in relatively predator-free conditions, according to new research published in the journal ...
Researchers used high-speed cameras to film male guppies as they jumped. When a guppy jumped out of a laboratory tank and nearly landed in her cup of tea, Daphne Soares couldn’t resist putting her ...
Genomic DNA was extracted from caudal finclips using the HotShot method (Truett et al, 2000). We screened four guppies of the Green strain, five guppies of Red strain, five guppies of the Blue strain, ...
Any owner of a freshwater aquarium likely has had guppies (Poecilia reticulata), those small brightly colored fish with a propensity for breeding. Now guppy populations manipulated in natural habitats ...
When a guppy jumped out of a laboratory tank and nearly landed in her cup of tea, Daphne Soares couldn’t resist putting her current research on hold to investigate this strange leaping behavior. "The ...
A new study of wild guppies could unsettle a decades-old idea about the role of danger in the evolution of aging. Biologists in the 1950s predicted that in a treacherous habitat, creatures would ...
Drab male guppies have hit upon a mating strategy that could be easily adapted to the bar scene: Home in on the female besieged by ugly males. In lab-raised descendents of wild guppies females prefer ...
A properly dressed male guppy, with its gaudy blue spots and brilliant splashes of orange, can't help but stand out. But for a fish that spends its life swimming among predators, it seems that good ...
When a guppy jumped out of a laboratory tank and nearly landed in her cup of tea, Daphne Soares couldn’t resist putting her current research on hold to investigate this strange leaping behavior. "The ...
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