* Threatening/killing their children/adopted children is one of the few things that can tempt a DCU hero, either [[PapaWolf male]] or female, that normally follows ThouShaltNotKill to, well, kill. When ComicBook/BlackCanary's adopted daughter Sin [[spoiler: apparently]] died during a kidnapping attempt by the League of Assassins, Dinah went ''berserk'' and nearly killed Merlyn, the mastermind of the scheme.
* The female Dr. Light proved her MamaBear status in print, in an alternate timeline in a recent issue of ''ComicBook/BoosterGold'', by killing the evil Max Lord for killing her kids. And thus, {{Fanon}} becomes semi-{{Canon}}: ''Don't mess with Kimiyo Hoshi's children!!'' In the main timeline, when the [[ComicBook/BlackestNight superpowered zombie]] Dr Arthur Light threatened her children, Dr Light was able to [[spoiler: create a bright and powerful enough light to ''completely atomize him'']].
* Leetah in ''ElfQuest'' is a healer who has lived most of her life in the peaceful desert oasis of Sorrow's End, until she and her family get caught up in the titular quest. When their party is attacked by trolls, she has no choice but to kill one of them who's threatening her daughter, even though it causes her a lot of soul-searching afterward.
** Considerably less soul-searching occurs when Rayek makes the mistake of abducting her into the future, then dismisses her love of Cutter. "He. Was. My. -SOUL-!!!" Rayek very quickly finds out that Winnowill has ''nothing'' on an enraged Leetah.
* Snow White in ''ComicBook/{{Fables}}''. When [[spoiler:Geppetto]] asks why she stood against him when he did nothing personally to her, she responds "You threatened my cubs. Do you think I would hesitate to throw a thousand worlds into chaos to protect them?" Following that, Bigby even refers to her as "Mama Bear".
** And in "March of the Wooden Soldiers," when [[spoiler: Geppetto's wooden army]] is attacking Fabletown, and Boo Bear is killed, a few panels farther on you see his mother, in the thick of the fighting, screaming "AndThisIsFor my Boo Bear, you ''monsters!''"
** Later on, in another arc, after SmugSnake [[spoiler: Prince Brandish claims Snow's hand, and ''defeats Bigby Wolf'']], Snow, even fighting injured and with her non-dominant hand, [[spoiler: outfights him and defeats him in a sword-to-sword duel.]] Why? Well, ''he'd made it clear he was going to kill her children!!!''
* One issue of ''ComicBook/FantasticFour'' had Reed and Susan's daughter Valeria caught in the middle of a rampage created by Thundra, the Absorbing Man, and a mind-controlled Ben Grimm and She-Hulk. She's about to be squished when Sue shows up, already in a bad mood. Cue the resulting stomping of four of the most powerful superhumans on Earth. Made even better when Reed and Johnny show up...and Reed restrains Johnny from trying to help Sue, because he knows that she's not going to need any.
** Sue could practically be the goddess of this trope. In the ''ComicBook/FantasticFour Vs. the ComicBook/{{X-Men}}'' miniseries, the team is nearly torn apart when an old diary of Reed's seems to imply that he caused the accident that transformed them into the FF on purpose. It's Sue that deduces the diary is a trap laid by Dr. Doom years before. She warns Doom that a lioness is "never as dangerous as when protecting cub, and den, and mate." She then asks Doom if he's ever considered just what would happen if she decided to project an invisible force-field ''inside'' his body...and then expand it.
** Add to this the fact that Reed is a PapaWolf himself, and it's a given that threatening Franklin and Valeria is death wish.
* In ''ComicBook/GoldDigger'':
** Julia Diggers goes MamaBear on the assassin Zero when he attacked her first student Gar, who's as close as a son to her, resulting in one of the epic battles of the entire series. One almost feels bad for Zero because he gets put in line of Digger's parent rage not once but several times, and he doesn't even have anything against them, it's just nessesary for his bosses' and thus his ultimate goals.
** Werewolf mom Jetta when her son Pojo is abducted. Then again, not only is she a rather traumatized individual of a species ''bred'' to be violent killers, she is also the ''only'' female capable of her species capable of having children, and Pojo is her newborn, first child. All things considered, her reaction was one of thoughtful consideration, really.
* A very grim example: in ''ComicBook/HackSlash'' Cassie Hack's mother was so outraged when her daughter was bullied by popular girls at high school that she murdered them all as The Lunch Lady Killer. And she was '''so''' outraged that, after being caught and committing suicide she came back from the dead to carry on, forcing her daughter to rekill her.
* ''ComicBook/{{Huntress}}'' (Helena Bertinelli) demonstrates this when her students are threatened. With added holding villains off rooftops for fun!
* Kate Spencer AKA Comicbook/{{Manhunter}} will kill anyone who hurts her son.
* Michael Tree, the heroine of ''MsTree'', will go medieval on the ass of anyone who threatens her stepson Mike or, later, her daughter Melody.
** And her EvilCounterpart, mob boss Dominique Mureta, is equally violent in the defense of her daughter.
* ''ComicBook/MyLittlePonyFriendshipIsMagicIDW'': They're sisters, really, but Rarity and Applejack are both understandably highly motivated to rescue the Crusaders from the Changelings.
** When the Mane 6 finally get to rescuing the CMC in issue #4, Rainbow Dash is shown to be protecting Scootaloo as frequently as the above sister pairings. Consider that continuity-wise, this arc pre-dates "Sleepless in Ponyville" where the relationship was made more explicit.
* A literal Mama Bear is shown in a two comic arc by Kevin J. Anderson featuring a ''Franchise/{{Predator}}'' taking on an angry mother grizzly. After the Predator blasts one of her cubs, he's ambushed by the furious mother and, despite his technological advances, eventually succumbs to her ferocity.
* ThePunisher story arc ''Streets of Laredo'' features a mama bear in the form of Rachel, the leader of a big-time gunrunning outfit in Texas. The only thing she cares about more than her operation is her son, Clark. Clark is openly gay, and when one of Rachel's men voices his contempt she challenges him to a fight and coldly [[NoHoldsBarredBeatdown beats him to death]].
* Mary Jane Watson-Parker had a similar one in ''Comicbook/{{Spider-Girl}}'': She's attacked by the new Green Goblin (Harry's son, Normie), who intends to kidnap and use her as bait for her daughter, the titular heroine. MJ just refuses to play along, and beats him with a lamp while [[TheReasonYouSuckSpeech lecturing him about how childish he was being]] (Paraphrased from memory: "I used to change your diaper, what makes you think I'm going to be scared of you!?"); Normie is completely thrown off, and tries to apologize before Spider-Girl then swings in to the rescue. Which one she's rescuing is a bit unclear by this point.
* Despite being villains themselves, the Pride do everything in their power to keep their children safe in ''ComicBook/{{Runaways}}''. In one story arc, [[spoiler:the group gets stranded in the 1800s and Chase meets the past selves of the Yorkes when they were time traveling to that era. He angrily informs them that their daughter is dead in their future, his present (in their time, Gertrude still has about two years left). Stacy and [[PapaWolf her husband]] make immediate plans to save their daughter from this fate and bring a ''nuclear bomb'' to the city to get revenge for Gertrude dying in ''any'' of the possible futures.]]
* ''ComicBook/TheSandman'': When Hippolyta's son Daniel is taken to be the next incarnation of Dream, she loses her mind and [[spoiler: recruits the Furies to take revenge on the original Dream, leading to his death]]. To be fair to Hippolyta, she only goes this far when she thinks Dream ''burned her son to death''. When she realizes that Daniel is still alive (only his mortality was burned away), she tries to get the Furies to stop their attack and help her get him back saying that they don't have to kill Dream. The Furies tell her that they don't help, they avenge and continue on their campaign unabated.
* Even Aunt May Parker has demonstrated this line of abilities when somebody messes with her dear nephew and adopted son, Peter Parker, AKA Comicbook/{{Spider-Man}}. When the Chameleon, a ruthless assassin and skilled infiltrator, tries to take Peter's place, she not only manages to subdue him in an undeniably classy fashion, she also scares the bejeezus outta him in the process.
** And in another storyline, when the Vulture broke into their house and threatened them with a gun, after Peter managed to disarm him of it (trying hard not to show his full strength and give his identity away) ''she'' picked the weapon up and pointed it at the criminal, and ordered him to leave.
** Her [[ComicBook/UltimateSpiderMan Ultimate Universe]] version (admittedly, rather ''feistier'' than the original), responded to J. Jonah Jameson merely ''firing'' Peter Parker by ...asking to speak to him on the phone. Afterwards, Jameson revoked the firing and balefully told Peter not to put him on the phone with his Aunt ever again...
*** More recently, when Ultimate Eddie Brock/Ultimate Venom showed up at the Parkers' home, attempted to talk his way inside (reminiscent of a scene that occurred in the mid-90s animated series where the beefier inspired-by-616 Brock does the same to a quite-different Aunt May.) The conversation does not go well for Ultimate Brock. She pulls a hand cannon on him and threatens to blow him away, knowing what he is.
* Sure, her son's one of the most powerful non-god beings on the planet, but do NOT mess with {{Superman}} when Ma Kent is around. She probably won't be of much use, but damn if she won't try. Pa Kent'll provides backup as a PapaWolf - and ''he's'' got military experience.
* Nomi Sunrider in ''ComicBook/TalesOfTheJedi''. This is how she gets started on the path to Jedi-dom; she picks up her murdered husband's lightsaber to defend their daughter from a bunch of space thugs.
* In ''Comicbook/TeenTitans'', Adeline Wilson takes this to a pretty scary level. After her husband, [[ProfessionalKiller Slade]] lands their son Jericho in a hostage situation (that ends with their child being rendered permanently mute due to his throat being slit), Adeline shoots Slade in the head. Another, even more extreme example (Though it may not count since [[WithGreatPowerComesGreatInsanity she had just gained super powers that made her so psycho]]) occurred when she tried to destroy every super powered person in the '''world''' to [[spoiler: avenge Jericho's death.]]
* In the "Rise of the Olympian" story arc, WonderWoman destroys the Secret Society's headquarters ''with her bare hands'' after their creation Genocide captures and tortures Etta Candy with her own lasso.
* Subverted in the ''Comicbook/{{X-Men}}'' comic books. Jean Grey is -- in most continuities -- the mother of Rachel Summers. Very rarely does Jean ever lift a finger to protect Rachel. This is probably because Rachel is a psi of talent close to or ''exceeding'' her mother's own. Baby can take care of herself and Mama knows it too well. Plus, Mama's [[FirstLawofResurrection dead a lot.]]
** But then played straight when Jubilee starts having nightmares about Sabertooth, who is being held on the grounds at the time. Jean confronts the captive Sabertooth, walks in to his cell, and proceeds to ''break every bone in his body without lifting a finger.'' Don't threaten Jean's family. Just don't.
--> '''Jean''': ''You are a firecracker, I am an atom bomb.''
** Played straight in regard to her students. When the U-Men turn up, looking to harvest the organs of the students, Jean proceeds to humiliate and terrify them without moving, or, indeed, even raising her voice.
* Played straight with Ororo Munroe aka {{Storm}} in the '90s ''WesternAnimation/{{X-Men}}'' animated series, when her god-child (the son of Storm's best friend in Africa, whom she has known from birth) who's also a mutant (more exactly, a FragileSpeedster a la Quicksilver) is kidnapped and possessed by her arch-nemesis, the Shadow King. Used a bit in ''WesternAnimation/XMenEvolution'', too, where she was Evan/Spyke's Auntie Bear of sorts an the TeamMom of the group.
* Though not ordinarily thought of as having a particularly motherly attitude, ''Emma Frost'' of all people. To say that she does not take kindly to people threatening or harming her students is an understatement. Given that her entire first class of pupils was murdered, that's not a shock, and it's been strongly insinuated several times that there are ''no'' lengths she won't go to in keeping her current "kids" safe.
** And she shot her own sister in ''GenerationX'' after said sister's actions resulted in the death of one of her students.
** The reason she gave X-23 such a hard time when she first arrived at the Institute was because she thought X-23 was a danger to the other students. Since X-23 is a TykeBomb with a body count to her name and goes berserk when exposed to a certain chemical trigger that the Weapon Plus program still has (which is so indoctrinated into her brain that Emma can't undo the conditioning), Emma isn't exactly wrong. She definitely [[KickTheDog Kicked The Puppy]] when she [[spoiler: tormented X-23 with visions of the mother figure X-23 killed under the influence of the trigger scent]] to show X-23 that she didn't belong at the Institute...but later she does come around though, as she eventually sees that X-23 is just another student who needs her protection. In fact, she finds Kimura (X-23's abusive former 'handler') and [[spoiler: erases her only happy memories before sending Kimura to kill everyone at the Facility, starting with the poor SOB who kidnapped her pupil Mercury]]. Don't frak with Frost.
*** It's come to the point where almost any time Emma makes an appearance in a book focusing on X-23, it's so that the latter can serve as Emma's MoralityPet.
** Her first class of pupils (but one) was murdered (the Hellions), and then Everett and Angelo from her second class (Generation X), then the entire third class (in Genosha)...and lately she lost a big chunk of her fourth class (45 students at Xavier's school where she was the headmistress), mostly because of the [[PutOnABus School Bus]] [[KilledOffForReal of death]].
* ScarletWitch [[ComicBook/HouseOfM remade the world]] to save her sons. She also kicks ass in Children's Crusade with said kids.
** In [[ComicBook/TheChildrensCrusade The Children's Crusade]], The Scarlet Witch was all set to sit back and let the X-men do what ever they wanted to her. Then Emma Frost tried to mind control her kids into going with the X-Men.
-->'''Scarlet Witch:''' ''Auntie Emma, you might want to check with their mother first. Because I hear she can be a real bitch.'' ''*Blasts Emma Frost in the face*''
* JessicaJones is this if her daughter, Dani, is threatened.
** This trope first comes into play when the Green Goblin attacks her while she's pregnant. She freaks out, thinking he's killed her unborn baby, grabs his gilder from beneath him while he's in the air and then wallops him with it. Spider-Man's reaction is "Whoa."
** It comes into play again in YoungAvengers when Kang threatens her. She attacks him and steals his weapon, telling him to never threaten a pregnant woman. Later, when the changes to the timeline temporarily erases her pregnancy, she attacks him again, demanding to know what he did with her baby.
** During the events of SecretInvasion, she gives Dani to Jarvis for safekeeping while she helps [[LukeCage her husband]] fight the bad guys. When she discovers that Jarvis was actually a skrull who has kidnapped her daughter, she goes on a rampage trying to find her.
** In MightyAvengers, when SuperiorSpiderMan confronts Jessica and Luke while they're with Dani, they arrange for a babysitter to pick her, then start whaling on him for putting her daughter in harm's way.

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