A male dwarf spider uses a plug to seal up its mate, ensuring nobody else can deposit sperm in the female’s sperm storage locker. After a day or so, ...

Male dwarf spiders, for instance, ... The red square indicates the position of the genital region (epigyne) that is plugged by the male. view more . Credit: Melanie Witthuhn.

Photo of an adult male dwarf sperm whale found on Sullivan's Island beach and posted on Lowcountry Marine Mammal Network's Facebook page on April 9, 2024.