Tonight I watched again first episode of NHK スペチアル ヒューマン。I love this awfully beautiful but very scientifically accurate program.
https://www.nhk-ondemand.jp/goods/G2012036277SA000/?spg=P201200085700000
It is interesting notion that one of the key differences between homo sapiens and chimpanzees is that human mother needs help when delivering baby. This is due to the structural differences in female pelvis versus chimp.
I really recommend this documentary.
