[[quoteright:250:[[Film/{{Aliens}} http://static.tvtropes.org/pmwiki/pub/images/Aliens-WeaverOnTheright_again_resized_9285.jpg]]]]
[[caption-width-right:250:"[[PreAsskickingOneLiner Get away from her, you]] '''[[ThisIsForEmphasisBitch BITCH!]]'''"]]

->''She is wedded to convictions—in default of grosser ties; \\
Her contentions are her children, Heaven help him who denies!— \\
He will meet no suave discussion, but the instant, white-hot, wild, \\
Wakened female of the species warring as for spouse and child.''
-->-- '''Creator/RudyardKipling''', [[MoreDeadlyThanTheMale "The Female of the Species"]]

%% One quote is sufficient. Please place additional entries on the quotes tab.

Bears usually won't attack humans -- but get between a mother bear and her cub, and [[BearsAreBadNews she'll tear straight through you]]. Threaten her [[{{Protectorate}} children]], and you are in for a world of hurt. [[AdrenalineMakeover Righteous awesomeness will ensue]], and the heroine reclaims her child with a tearful embrace.

Oftentimes, when a previously perceived meek mother (or MyBelovedSmother) goes into this mode, it's her CrowningMomentOfAwesome. Heaven help you if an ActionMom or even a TeamMom invokes this trope. If you think a normal MamaBear is scary, hell hath no fury like a MotherlyScientist with access to OneManArmy levels of weaponry/technology/money/superpowers to protect her children. It can lead to a DidYouJustPunchOutCthulhu moment.

Losing their child may cause a StartOfDarkness into villainy or AntiHero-dom... anything if it will [[RoaringRampageOfRevenge get their revenge]], and not just on their own enemy but on anyone who would inflict this same pain on others.

The DistaffCounterpart is referred to as PapaWolf rather than "Papa Bear". {{Disneyfication}} aside, male bears are notoriously poor parents in the animal kingdom (infanticide among bears is the main reason why mama bears are so protective in the first place), whereas male (and female) wolves will react to their offspring being threatened in a very similar manner to mother bears.

Sometimes overlaps with ApronMatron and PregnantBadass. It can be a cause of LetsGetDangerous, showing that the sweet and caring mother figure is dangerous. They may be a KnightTemplarParent. Provides a simultaneously simple and believable way to switch someone between {{Badass}} and [[{{Moe}} more "cute"]] modes without compromising character as either. After all, if ItsPersonal then the claws come out.

If an older sibling is the one who takes up the role, s/he is a case of BigBrotherInstinct / BigSisterInstinct. For a teacher who behaves like a Mama Bear if their students are threatened, see BadassTeacher.

Related to BewareTheNiceOnes and BerserkButton. See also the non-human counterpart, MonsterIsAMommy. Not to be confused with BearsAreBadNews (unless you're dealing with a ''literal'' MamaBear). The ViolentlyProtectiveGirlfriend is a much younger form of this trope that applies when the mate is in danger. Evil characters can use this too; after all, EvenEvilHasLovedOnes. A particular Subtrope is the BadassAndChildDuo which can take the form of a female badass protecting an orphaned, unrelated young child, [[PapaWolf though male badasses]] are more common.

Remember when adding examples that this is a female only trope. The male equivalent is [[PapaWolf "Papa Wolves"]] so all {{Spear Counterpart}}s should be placed there. When MamaBear and PapaWolf team up, it's a BattleCouple. ParentsInDistress is the inversion, when Mama needs to be bailed out by the kids.
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'''Example subpages:'''

[[index]]
* MamaBear/AnimatedFilms
* MamaBear/AnimeAndManga
* MamaBear/ComicBooks
* MamaBear/FanFiction
* MamaBear/{{Literature}}
* MamaBear/LiveActionFilms
* MamaBear/LiveActionTV
* MamaBear/VideoGames
* MamaBear/WebComics
* MamaBear/WebOriginal
* MamaBear/WesternAnimation
* MamaBear/RealLife
[[/index]]

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[[foldercontrol]]

[[folder:Music]]
* Diss Reba [=McEntire=], I dare you; [[http://www.facebook.com/TerriClark/posts/144819435568883 Terri Clark will take your face off]]
* A [[BearsAreBadNews literal]] MamaBear appears in {{mothy}}'s [[https://www.youtube.com/watch?v=BgL5xXH5zEM "Moonlit Bear"]], in which the protagonist, [[UnreliableNarrator Eve]] (portrayed by [[{{Vocaloid}} Miku]]), steals two "apples" from a bear, which then proceeds to chase her through the forest. Turns out that [[spoiler:the MamaBear is a human mother after all, and the two "apples" are actually her twin children, who she is desperate to retrieve. Out of fear as well as her desire to have children of her own since hers are deceased, Eve ends up murdering the "bear"]].
[[/folder]]

[[folder:Mythology]]
* Persephone's mother Demeter, goddess of the harvest, refuses to allow any growth of crops until her daughter is returned to her from the Underworld, resulting in many mortal deaths. Made more interesting in that Persephone's kidnapper/husband is also her uncle, Demeter's younger brother Hades.
* King Agamemnon's wife, Queen Clytemnestra, killed him because he had sacrificed their daughter Iphigenia to the gods. The fact that Agamemnon was [[YourCheatingHeart bringing his new mistress Cassandra home from the Trojan War]] probably [[WomanScorned did not help his case either]]. It's worth noting that Clytemnestra and her lover also tried to kill her son (by Agamemnon) Orestes when he was a small child, and treated the remaining daughter Electra poorly (and in some versions, tried to get her killed as well). [[JumpingOffTheSlipperySlope So she's not the best example of this trope]].
** Well, part of her motivation for hating Agamemnon comes from his treatment of her children by her first husband -- in order to marry her, he invaded Mycenae, killed her husband, and dashed her baby's brains out against a wall. In front of her. With her father's blessing. So when he killed another one of her children, this time also one of his own, in pursuit of her perfect sister Helen, whose daughter was promised to Orestes by mutual agreement of the fathers, it's not as surprising that she got a little crazy.
** [[Music/BlindGuardian This is about a girl called Cassandra... about her royal suffering... and she's trapped]] '''[[http://www.youtube.com/watch?v=VYFFivxw56A UNDER THE ICE!!!]]'''
* Durga from HinduMythology. She is a nurturing mother goddess, but she is also a ''very'' [[ActionMom powerful warrior]]. As TheBerserker Kali, she takes this to a dangerous extreme.
* Pele, the Hawaiian goddess of fire. According to legend, she regards all the volcanic rocks on the shores of the Big Island to be her children, and will inflict a horrible curse on any tourist who dares to take one of the rocks home with them as a souvenir.
[[/folder]]

[[folder: Newspaper Comics]]
* ''ComicStrip/RoseIsRose'' played this trope completely straight with a Sunday strip, featuring Rose transformed into a "Mama Bear" to symbolize her overprotective nature before she meets Pasquale's new babysitter. However, Rose relaxes when she opens the door she finds that the prospective sitter is apparently a MamaBear as well.
* ''ComicStrip/{{Dilbert}}'': [[FanNickname The Dilmom]] frequently gives her son a hard time, but she [[http://dilbert.com/strips/comic/2013-09-14/ does take exception]] to [=MIBs=] making noises about executing him.
* ''ComicStrip/TheFarSide'':
-->"Tragedy struck when Conroy, his mind preoccupied with work, stepped into the elevator -- directly between a female grizzly and her cub."
[[/folder]]

[[folder: Roleplaying Games]]
* Roleplay/DinoAttackRPG has Sarah Bishop. She even got a moment homaging the climax of ''Film/{{Aliens}}''. At the same time, however, Sarah Bishop is partially a deconstruction. She is (understandably) concerned about her daughter being in a war zone, but her own AdultFear made her completely psychotic to the point that many players expressed genuine fear of her. This same thing also broke her psychologically once the war was finally over [[HeelRealization and she'd realized what she had done]].
[[/folder]]

[[folder: Tabletop Games ]]
* ''TabletopGame/UnknownArmies'' has the Mother archetype. High-level Avatars of the Mother get huge bonuses in combat when they're either defending a child, or pregnant. The phrase "mama bear" even shows up in the rulebook description of their second Avatar channel.
* ''{{Munchkin}}'' invokes this with the "Mommy" card. When someone is in combat with a weaker monster or one that's been turned into a Baby, you can play this card to summon the monster's mother, who is ten levels higher. And woe is you if the Baby + Mommy combo is applied on a Lv. 20 Plutonium Dragon...
* ''DungeonsAndDragons''
** 1st Edition ''Monster Manual''. When a pair of mated dragons had offspring, any attack on the young dragons caused the father and mother to attack the intruders with a ferocity bonus of +2 to hit and +1/+3 on clawing/biting damage.
** 1st Edition ''Monster Manual II''. If a female cheetah's cubs are threatened, she will attack at a +2 to hit and do +2 HitPoints damage per attack.
** Mayfair Games' 1E Role Aids supplement ''Lizardmen''. When female lizardmen are guarding the eggs in the hatchling pool, they fight as level 3 fighters (instead of their normal level 1), a bonus given them by the lizardman deity Rega.
** The [[http://www.wizards.com/dnd/images/MM35_gallery/MM35_PG138.jpg Grey Render]] is a huge monstrosity with a penchant for "adopting" small creatures of other species (even ones it would normally eat), to whom it will thereafter bring food and protection. And if you dare so much as look at them funny, ''it will tear you down'' like the squishy little piece of meat you are and share your body with its protegés.
* In ''{{GURPS}} Bestiary'', a sidebar makes it very clear why you shouldn't get between a mother animal and her young.
-->Mothers protecting their young are the fiercest foes on Earth, and probably anywhere else for that matter. Mother animals know no fear, are quick to feel threatened, take offense easily, and will attack viciously, giving no quarter.
* ''Marvel Super Heroes Adventure Game'' (SAGA System) Adventure 3 ''Fantastic Four: Fantastic Voyages''. In the adventure "Wild at Heart", a monster emerges from the earth in a small town and starts destroying the place. If the heroes don't subdue the creature quickly enough, a much larger monster appears and starts searching for the smaller one - it's the smaller monster's mother. If the heroes have hurt its child it will go berserk, trying to destroy anyone and anything it can see.
* Chaosium's supplement ''All the Worlds' Monsters''. Female bears and tigers (if cubs are attacked, fight at +2 to hit) and Elder Daughters of Kali (do double damage to anyone attacking her children).
* ''The Morrow Project''. Female bears and pigs are noted as being especially protective of their young and prone to attack if they are threatened.
* ''TabletopGame/{{Champions}}'' Organization Book ''The Circle and M.E.T.E.'', adventure "The Hatching". The M.E.T.E. (Metropolitan Extra Terrestrial Enclave) receives a large spherical object (called Case 39) that was found in a national park. It eventually hatches out an alien Blob-like monster which goes on a rampage. Three months later the alien's mother shows up and tries to rescue its child, and heaven help any superhero that gets in its way.
* ''TabletopGame/StarFleetBattles''. The monsters known as Space Dragons sometimes ravage inhabited worlds. If a ship gets between a Space Dragon mother and its child, the mother will change course, move toward the ship and attack it.
* ''Encounter Critical'' supplement ''Asteroid 1618''. Inside the Vanishing Pyramid, the {{PC}}s can find eggsacs laid by a GiantSpider. If an eggsac is broken open (from prodding or gunfire) 1-20 baby spiders will emerge and attack the {{PC}}s. If {{PC}}s kill any of them, the mother spider will smell the babies' blood on the {{PC}}s, track them down relentlessly, and ferociously attack them, doing double damage.
* ''TabletopGame/HollowEarthExpedition'' main rules sample adventure. When the {{PC}}s first arrive in the Hollow Earth, they will encounter a herd of triceratops, including a mother and her child. If the {{PC}}s get too close, the mother will charge them, and if they attack the child, she will become enraged.
[[/folder]]

[[folder:Theatre]]
* Kim from ''MissSaigon'' [[spoiler:shoots her own cousin who tries to kill her illegitimate son by an American GI]], yelling "I have no other choice, what I must do I will!" as she does so. A lot of people remember the part as a defining moment for Kim, especially with her screaming "YOU WILL NOT TAKE MY CHILD!"
* The interpretation of Umbridge in ''AVeryPotterSequel'' likes to consider herself a mama bear InUniverse -- ""It's your Mama Umbridge's job to keep her baby bears safe!" However, she doesn't actually fulfill this role and just embarrasses the girls.
[[/folder]]

[[folder:Visual Novels]]
* Morgan Fey from ''Franchise/AceAttorney'' will do anything to take care of her daughter Pearl. [[spoiler: More specifically, to make sure Pearl becomes the Kurain master rather than being shunted to the side while Maya takes the position. Not only did she aid a murder and frame Maya for it, she then tried to make Pearl channel the spirit of Dahlia (Pearl had no idea that Dahlia was her dead older half-sister) so Dahlia could murder Maya.]] We didn't say she was ''nice''.
** In answer, and in a much more heroic example, [[spoiler:Morgan's younger sister Misty Fey totes around a sword-cane and swears to do anything necessary to keep her remaining daughter Maya safe (the eldest one, Mia, had been already killed), up to and including Morgan's death, or her own. The latter comes to pass when she deliberately channels Dahlia's murderous spirit so little Pearl won't be able to, and "Dahlia" gets killed while trying and failing to bring her plan about.]]
** Morgan might be a subversion. For perspective, Pearl is like eight, and heavily sheltered (she's never left the village, for any reason, ever). Also, Morgan [[spoiler:wants Pearl to become the master ''now''. So it's pretty clear that Morgan only wants this not because she feels Pearl is particularly deserving, but because Pearl isn't even old enough to be up after dark, meaning she'll be the puppet through which Morgan (who is somewhat bitter over her position as part of the branch family) forces her own agenda upon the family. Not so MamaBear. Maya, by contrast, is a much more nurturing caretaker while Morgan is imprisoned, encouraging Pearl to have fun and in general be a little girl while she has the opportunity; Pearl, for her part, reveres Maya completely and would probably flip her lid if she knew what her mother was really up to]].
* ''VisualNovel/UminekoNoNakuKoroNi'' does this in its first three arcs. In episode 1, Natsuhi Ushiromiya [[spoiler: banishes the two remaining servants, the family doctor, and her niece Maria because she suspects them of being murderers and wants to protect her daughter Jessica. This does not end well. She also fights the Golden Witch Beatrice in a duel, although you might call that a subversion: the desire to protect daughter and gun not equal to ability to defeat 1000-year-old sadistic witch.]] The trope name itself is referenced during the proceedings.
** In its second arc, Rosa Ushiromiya [[spoiler: does the same thing as her sister-in-law Natsuhi in order to protect her daughter Maria. (Even more noticeable since Rosa is an AbusiveParent as well). Furthermore, at the very end of that gameboard, the last twilight begins, and [[KillEmAll golden butterflies and goat-headed servants are released to eat all remaining humans on the island.]] Rosa, in one of the most badass scenes in the whole game/anime, take on the goats with [[EyeScream fountain pens to the eyes]] and gunshots at close range. She manages to take out three before they both die.]]
*** Taken further in the final game installation, [=EP8=]. [[spoiler:Erika]], darling, never ''ever'' [[KickTheDog tell poor little Maria that her mommy doesn't love her]]. Because said mommy will not only flip her shit at that, but [[spoiler:''fucking shove a rifle down your throat''.]] Don't say we didn't warn you.
[[/folder]]

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