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.
Pizzari
Tommaso
T
Edward Grey Institute, Department of Zoology, University of Oxford, Oxford OX1 3PS, UK. tommaso.pizzari@zoo.ox.ac.uk
D000818:Animals; D005075:Biological Evolution; D023681:Cichlids / Q000502:physiology; D005260:Female; D005306:Fertilization / Q000502:physiology; D008297:Male; D012726:Sexual Behavior, Animal / Q000502:physiology*; D013081:Sperm Motility / Q000502:physiology; D013094:Spermatozoa / Q000502:physiology*