WHAT THE FUCK APPARENTLY ONLY HUMANS AND SOME SPECIES OF PRIMATE MENSTRUATE AND ALL OTHER MAMMALS JUST REABSORB THE UTERINE LINING INSTEAD OF EXPELLING IT
I AM SO MAD RIGHT NOW THIS IS SO UNFAIR WHY DO HUMANS MENSTRUATE WHAT…
"All female placental mammals have a uterine lining that builds up when the animal is fertile, but it is dismantled when the animal is infertile. Most female mammals have an estrous cycle, yet only primates (including humans), several species of bats, and elephant shrews have a menstrual cycle. … species such as humans where much of the lining is lost through bleeding (overt menstruation) rather than reabsorbed (covert menstruation).”
- quoted from http://en.wikipedia.org/wiki/Menstruation on April 16, 2014.
"The answer that Emera suggests is entirely evolutionary, and involves maternal-fetal conflict. The mother and fetus have an adversarial relationship: mom’s best interest is to survive pregnancy to bear children again, and so her body tries to conserve resources for the long haul. The fetus, on the other hand, benefits from wresting as much from mom as it can, sometimes to the mother’s detriment. The fetus, for instance, manipulates the mother’s hormones to weaken the insulin response, so less sugar is taken up by mom’s cells, making more available for the fetus.
Within the mammals, there is variation in how deeply the fetus sinks its placental teeth into the uterus. Some species are epithelochorial; the connection is entirely superficial. Others are endotheliochorial, in which the placenta pierces the uterine epithelium. And others, the most invasive, are hemochorial, and actually breach maternal blood vessels. Humans are hemochorial. All of the mammalian species that menstruate are also hemochorial.”
- quoted from http://scienceblogs.com/pharyngula/2011/12/21/why-do-women-menstruate/ on April 16, 2014.
Menstruation as self-defense. Weird.
Rainbow Castle built by Simon Schweyer via the Brothers Brick. I love the eye pieces used in the pathway, and the pink pieces for the ground.
Archaeologists believe they might have stumbled across an Iron Age mint which produced gold and silver coins for the coveted Hallaton Treasure.
The dig at Blackfriars, in the city, unearthed coin mould fragments which, combined with evidence from previous excavations, seems to confirm the…
Who cares about the coins. DOGS! I want to know about the DOGS!
ok but what if like. werewolves transform under the full moon but theres just this one and by day hes a big tough guy and then when he transforms hes a tiny dog. just fucking. just fucking turns into the tiniest, fluffiest dog
imagine that howling at the moon
Truly a ferocious predator.
And lastly: (He’s the pack leader obviously)
the big wolves are his younger sisters
oh my fucking god it got better
i can’t believe it’s 2014 and there’s still no gay romantic comedy about vin diesel and dwayne johnson falling in love
They raise a gaggle of kids undercover working for a gov’t agency together
I would watch the shit out of that.They can still drive cars, though, right? Couple armored baby seats in the back?
where do i put the money in?
And work Antonio Banderas in there. He did play a spy in Spy Kids. Maybe he could be Dwayne’s ex-boyfriend and make Vin Diesel jealous.