The Australian government has announced that a newly discovered species is dying out.
Both the silver-headed antechinus and the black-tailed dusky antechinus are officially endangered.
It's because the shrew-like animals are having too much sex! The little critters are taking part in 14-hour sex sessions and dying from sheer exhaustion.
The marsupials were only discovered in 2013 but scientists at Queensland University of Technology say they'll soon by gone.
Mammalogist Andrew Baker said the annual mating season is frantic:
"The breeding period is basically two to three weeks of speed-mating, with testosterone-fuelled males coupling with as many females as possible, for up to 14 hours at a time."
"Ultimately, the testosterone triggers a malfunction in the stress hormone shut-off switch; the resulting rise in stress hormones causes the males' immune systems to collapse and they all drop dead before the females give birth to a single baby."
Speaking to Sky News, Dr Baker said:
"They're honestly like the walking dead towards the end. I've seen them stumbling around during the day - they are nocturnal mostly - still looking for mates, bleeding from various parts of their body and their hair has fallen out."
Dr Baker discovered both of the endangered species and believes the population was ten times bigger just a few decades ago.
