Male antechinuses usually live for only one breeding season.
NOT BSTOTAL BS
NOT BS — Verdict: True
Verified by Lenz ·
The Short Version
Male Antechinus are well documented as breeding once and then dying soon after, with post-mating male mortality typically near 100%. Peer-reviewed studies across the genus describe this as semelparity or effectively suicidal reproduction. The wording “usually” is therefore accurate, and if anything slightly cautious.
Caveats
Mortality rates can vary somewhat by species and population, but the core pattern remains a single breeding season for males.
“Usually” slightly softens the biology: in many Antechinus species, male die-off after mating is so extreme that survival to a second season is virtually absent.
Popular articles often use dramatic phrasing such as “sex until they die”; the reliable basis is the peer-reviewed literature on post-mating mortality and semelparity.