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Parental behavior (Maternal Brain --> mPOA = maternal care -->…

- - - - Removal glanin neurons in Nursing mice with baby
        --> reduced pup retrival behavior
      - removal in virgin mice
        --> attacking pups!!! WTFF DUDE !! CHILL!!
- - - - Altrical offspring:
        --> helpless at birth
      - Precocial offsping
        --> more developped at birth
        --> certain degree of independence
        e.g deer, cow, guinea pig, whale lol
      - Semiprecocial offsping:
        --> helpless at birth but can cling to mother / parents
        e.g Monkey babies
- - - - Placenta
        --> many hormones
        
        human placenta lactogen (hPL)
        --> stimulates mammary gland to change to begin to secret milk
        --> starts 10th week in steady and steep increase until before birth then declining
        
        human chorionic gonadotropin (hCG)
        --> early in pregnancy
        --> maintains progesteron secreation
        --> maintains uterus lining for embryo to settle in
        --> measure by most pregnancy tests
    - - Cortisol
        
        High levels during pregnancy:
        ---> physically more engaged with child
        -> maybe cause could increase responsiveness to infant cues
        
        High levels after pregnancy:
        --> identify their kid better (cry, clothes)
        --> like their kids smell more
      - Estrogen
        
        During pregnancy
        --> more estrogen than progesterone = better attachment to child
        --> too much attachment not good lol ?
        
        Change in ER-alpha receptor gene
        --> some associated with worse maternal care
  - - - Before+ after birth
        --> testosterone = reduced (less aggression)
        --> prolactin = increased (more caring)
        --> cortisol = decreased
        --> oxytosin = high (bonding)
        -------> high only in affectionate fathers :3 !!
        --> man with lowest testosteron and highest prolactin spend most time with kids :3 !!