Sentences with phrase «complex ejaculate»
In fact, complex ejaculate - female and sperm - female interactions are emerging as more the rule than the exception.»
https://www.sciencedaily.com/
In some species it ends with a complex ejaculate package that does more than fertilize offspring.
Not exact matches
«As scientists, we already knew that male butterfly ejaculates were three-fold complex structures we call spermatophores — composed of an outer envelope, an inner matrix of fluids and a bolus of sperm,» says UC's Morehouse.
Recent interdisciplinary research led by Morehouse in the Morehouse Research Lab and Nathan Clark, biologist in the Clark Research Lab at the University of Pittsburgh looked closer at the complex structures and mechanisms within male butterfly ejaculates and the adaptive responses in the female butterfly reproductive tract.
By measuring multiple ejaculate traits of each male, the study characterized complex patterns of multivariate selection on combinations of sperm size, speed, and swimming path straightness.