The National Geographic Magazine, Volume 204National Geographic Society., 2003 - Geography |
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Page 44
... female choice , was largely ignored . " Right into the 1970s people were still laugh- ing at the idea of female choice , " says Michael Ryan , an evolutionary biologist at the Univer- sity of Texas in Austin . " One writer even said The ...
... female choice , was largely ignored . " Right into the 1970s people were still laugh- ing at the idea of female choice , " says Michael Ryan , an evolutionary biologist at the Univer- sity of Texas in Austin . " One writer even said The ...
Page 45
... female's back , and she carries him off to fertil- ize the eggs she will eject . " The whine portion of the call identifies the species , " says Ryan , in essence telling the female , " I'm a male Physalaemus pustulosus . " And the ...
... female's back , and she carries him off to fertil- ize the eggs she will eject . " The whine portion of the call identifies the species , " says Ryan , in essence telling the female , " I'm a male Physalaemus pustulosus . " And the ...
Page 46
... females . For a few seconds the males simply sit and preen . Then one of the males moves toward a female and pulls his wing to one side , producing a soft buzzing sound . " OK , he's starting his mating song , " says Markow . " If she ...
... females . For a few seconds the males simply sit and preen . Then one of the males moves toward a female and pulls his wing to one side , producing a soft buzzing sound . " OK , he's starting his mating song , " says Markow . " If she ...
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