Copulatory behaviour increases sperm viability in female spiders

F Cargnelutti, L Calbacho-Rosa… - Biological Journal of …, 2020 - academic.oup.com
One remarkable reproductive feature in animals with internal fertilization is a reduction in
sperm viability over time in females. Whether this reduction is driven by male–male …

Bundles of sperm: structural diversity in scorpion sperm packages illuminates evolution of insemination in an ancient lineage

DE Vrech, AV Peretti, L Prendini, CI Mattoni - American Museum Novitates, 2022 - BioOne
The spermatozoa of scorpions are often bundled together, forming a type of sperm
conjugation known as a sperm package. Sperm packages may be found inside the testes …