1. Many internally-fertilizing animals produce seminal fluid which is transferred along with sperm during mating. Seminal fluid typically contains a diverse range of chemicals that coordinate sperm storage, moderate sperm motility, provide advantages in sexual selection and influence female physiology. 2. Seminal fluid is well-studied in Drosophila melanogaster, a species in which it has been suggested to 'incapacitate' the sperm of rival males (e.g. by killing them) and thereby provide an...[Show more]
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