Video off the trail-camera I have monitoring my camera-trap, showing a (very obviously male) brown antechinus (Antechinus stuartii).
All the adult males died off at the end of Summer, immediately following breeding season, so this guy has only hit maturity in the last couple of months.
Without wanting to be crude… his testicles are absolutely enormous compared to the rest of his body.
#wildlife #WildlifePhotography #CameraTraps #CameraTrapping #SpermCompetition
In many species, males’ sperm compete for fertilization of eggs inside the female reproductive tract. This study of seed beetles suggests that the increased male investment in such sperm competition may lead to reduced genetic quality in future generations.
In many species, males’ sperm compete for fertilization of eggs inside the female reproductive tract. This study of seed beetles suggests that the increased male investment in such sperm competition may lead to reduced genetic quality in future generations.
In many species, males’ sperm compete for fertilization of eggs inside the female reproductive tract. This study of seed beetles suggests that the increased male investment in such sperm competition may lead to reduced genetic quality in future generations.
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