Results 191 to 200 of about 1,104,726 (307)

Polyandry and sperm competition in two traumatically inseminating species of Strepsiptera (Insecta). [PDF]

Sci Rep
Jandausch K, Wanjura N, Escalona H, Sann M, Beutel RG, Pohl H, Niehuis O.   +6 more
europepmc   +1 more source

Differences in sperm traits associated to sperm competition between rodent natural populations

, 2014
Maximiliano Tourmente, Juán José Luque-Larena, Eduardo R. S. Roldán   +2 more
openalex   +1 more source

Experimentally testing the function of anal fins in the bluefin killifish, Lucania goodei

Journal of Fish Biology, EarlyView.
Abstract Anal fins are thought to affect many functions, including swimming, sperm flow and signalling. However, there are few experimental demonstrations of these functions. We manipulated male anal fins by placing a cut in the fin. We found that cut males had lower fertilization rates than uncut males.
Edie Smelko, Rebecca C. Fuller
wiley   +1 more source

Sperm Competition and Paternity in the Endangered Firefly Pyrocoelia pectoralis (Coleoptera: Lampyridae: Lampyrinae). [PDF]

Insects
Fu X, Meyer-Rochow VB, Ballantyne L, Zhu X, Zhang Q.   +4 more
europepmc   +1 more source

Synchronized emergence under diatom sperm competition. [PDF]

Proc Biol Sci, 2020
Shirokawa Y, Shimada M.
europepmc   +1 more source

The outcome of sperm competition is affected by behavioural and anatomical reproductive traits in a simultaneously hermaphroditic land snail [PDF]

, 2010
Marina-Elena Garefalaki, Alexandros Triantafyllidis, Theodore J. Abatzopoulos, Αλεξάνδρα Στάικου   +3 more
openalex   +1 more source

Fathers Are Frightened but May Not Know It: Considering Masculinity and Attachment When Working With Fathers in Family Therapy

Journal of Family Theory &Review, EarlyView.
ABSTRACT Given the often‐unacknowledged emotional realities in theory and practice around masculinities and fatherhood, working with fathers in family therapy needs ongoing attention. Therapists' efforts can be enhanced through attending to how men and fathers may have been socialized towards restrictive masculine ideologies (e.g., devaluing emotional ...
Allen K. Sabey, Jakob F. Jensen, Brandon Jacobs   +2 more
wiley   +1 more source

THE EVOLUTION OF SPERM-ALLOCATION STRATEGIES AND THE DEGREE OF SPERM COMPETITION [PDF]

, 2005
Paul Williams, Troy Day, Erin K. Cameron
openalex   +1 more source

Reproductive Curation: Assisted Reproductive Technologies ( ARTs ) and Lesbian Motherhood‐Making

Journal of Marriage and Family, EarlyView.
ABSTRACT Objective This paper introduces reproductive curation, the deliberate coordination of reproductive arrangements, as a theoretical framework for examining how legal, institutional, and interpersonal factors interact with technology in shaping reproductive decision‐making, based on interviews with 32 lesbian mothers and mothers‐to‐be in China ...
Xiaomin Cai, Susanne Y. P. Choi
wiley   +1 more source

The rapidly evolving X-linked MIR-506 family fine-tunes spermatogenesis to enhance sperm competition. [PDF]

Elife
Wang Z, Wang Y, Zhou T, Chen S, Morris D, Magalhães RDM, Li M, Wang S, Wang H, Xie Y, McSwiggin H, Oliver D, Yuan S, Zheng H, Mohammed J, Lai EC, McCarrey JR, Yan W.   +17 more
europepmc   +1 more source