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.
Edward Grey Institute, Department of Zoology, University of Oxford, Oxford OX1 3PS, UK. tommaso.pizzari@zoo.ox.ac.uk
Tommaso
T
Pizzari
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*