Sexual Selection: Sperm in the Fast Lane
نویسندگان
چکیده
منابع مشابه
Sexual Selection: Sperm in the Fast Lane
Sperm competition has led to spectacular adaptations in males and their ejaculates. A recent study of Tanganykan cichlids provides compelling evidence that sperm competition can drive the evolution of faster, longer sperm.
متن کاملLife in the fast lane
Dormice born late in the year start to prepare for winter sooner than mice born earlier in the year.
متن کاملLife in the fast lane
What do you think about the publication policies of journals and the peer review system? The purpose of publishing academic research is fundamentally to disseminate knowledge. Unfortunately it has also become inextricably linked with career progression. I find the pressure to publish in ‘high impact’ journals regrettable for many reasons, not least of which is the disproportionate influence tha...
متن کاملSexual selection and the evolution of sperm quality.
Sperm experience intense and varied selection that dramatically impacts the evolution of sperm quality. Selection acts to ensure that sperm are fertilization-competent and able to overcome the many challenges experienced on their way towards eggs. However, simply being able to fertilize an egg is not enough to ensure male fertility in most species. Owing to the prevalence of female multiple mat...
متن کاملFemale remating, sperm competition and sexual selection in Drosophila.
Female remating is fundamental to evolutionary biology as it determines the pattern of sexual selection and sexual conflict. Remating in females is an important component of Drosophila mating systems because it affects sperm usage patterns and sexual selection. Remating is common in females of many species of Drosophila in both natural and laboratory populations. It has been reported in many in...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2009
ISSN: 0960-9822
DOI: 10.1016/j.cub.2009.02.026