Richard K. Zimmer

TL;DR: Results indicate that hOR17-4 functions in human sperm chemotaxis and may be a critical component of the fertilization process, as well as a strong chemoattractant in subsequent behavioral bioassays.

TL;DR: There are now vast new opportunities for determining how organisms respond to chemical signals and employ chemical defenses under environmentally realistic conditions, and integrating findings within a larger ecological and evolutionary framework should lead to improved understanding of natural physicochemical phenomena that constrain biological responses at the individual, population, and community levels of organization.

TL;DR: Evidence is provided that hOR17-4 activation is coupled to a cAMP-mediated signaling cascade and particulate AC is required for induction of hOR 17-4-mediated human sperm behavior and represents a promising target for future design of contraceptive drugs.

TL;DR: Relationships between hydrodynamic and chemical properties of the environ- ment and foraging success and efficiency suggest that variation in the physicochemical environment can influence the detectability of prey and strategies employed by foragers.

TL;DR: Analytical and numerical models were used to estimate the propulsive force generated by sperm swimming (Fswim) and the shear force produced by fluid motion within the vicinity of a rotating egg (Fshear), and male gametes were modeled as prolate spheroids to explain sperm–egg interactions.