South America, Australia, TOM discussed on Midday on WNYC

Automatic TRANSCRIPT

This is it yeah i i guess it's it's enclosing the literally on the dip als for months and so it's basically creating a wound like spikes and that was these fantastic stories when the sort of the the spaniards on the portuguese went off and discovered mossi pills both in south america and australia that was all sorts of his fantastic theories that the young marsupials were born in the pouch and that was even this identical tom so the mother before she gives birth sticks a head in a pouch and gives it sort of which may help the llosa's get in that people started thinking that the the female kangaroo may sneeze the fetuses into a pouch so there was lots and lots of confusion and it wasn't really resolved until the late nineteenth century early twentieth century how feel birth or what another unique feature liam to mammals is the placenta what's so important about the placenta so yeah the placenta is a fascinating i remember being genuinely shocked when my children will pull them to see the size of this organ followed them out in a sort of think the president is gonna this small like structure in this like a dinner plate solid flesh and so the thing about placentas and i i loved my full of children i i kind of looked numbers if i were these sort of the netherlands maternal structures that have nourished my children but when you actually known about it the developing mammal central novel dedicates a huge amount of its initial resources to making this sort of life rob and then essentially attacks the mother like my view of pregnancy was completely turned on its head researching this book and says basically a fetal structure which borrows in the on bull and then is basically designed to gather as much nutrients and sustenance for the fetus as is possible and the mother can actually end up resisting this and there's this whole theory of how the percenter shaped by jeans heritage from.

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