- Tuck's mother in The Saga of Tuck, when Tuck is in that Convenient Coma, scares everyone except possibly her husband.
- In Whateley Academy stories, during the Halloween invasion, we get at least two or three. Deathlist, a monstrous cyborg of superman-level power and the most horrifying villain in the Whatelyverse, makes the mistake of attacking the school and threatening the children. By the time Dean Carson (aka Lady Astarte) gets through with him, the only thing left of him to escape is his head. Jimmy T, a generally peacable shapeshifter, finds out his house of misfits, Hawthorne, is being raided by troopers looking to take "samples" from the helpless students, turns into fricking GODZILLA and stomps a mudhole in the forces there before then turning into a giant amoeba and eating an attacking dropship (though he did leave the soldiers in it alive, if mortally terrified, in the end). All over the campus were mother hens ripping bad guys a new one....
- It is safe to say that Strega overreacts a bit when her daughter is kidnapped: she lays siege to Paris, destroying the headquarters of the group who are holding her, turning hundreds of tourists to glass and threatening to use a sonic weapon on them, and either beating up or subverting a half-dozen of Europe's most powerful superheroes.
- Hey, at least kiwi aren't that nasty. Right? Right?..
- Do not threaten Strange Little Band's Addison Harris's children. Not unless you are prepared for a world of pain anyway.
- Like the very many Papa Wolves on the site, Lindsay Ellis (The Nostalgia Chick) will crush you if you hurt her friends. Her character might hate children and would be willing to see the fictional ones die, but hurt an animal and you'll see some damn scary Tranquil Fury.
- Chakona Space gives us Chakats. It's programmed into their DNA. Seriously, ten fur-hating rioters vs. two Chakats in child-defense mode. The rioters felt outnumbered. And since they're Hermaphrodites they can also qualify as Papa Wolf.
- Soniqua, Sonic's and Mother Brain's daughter in Sonic for Hire, is this towards Sonic (inverting this trope). Anyone who threatens or attacks Sonic will be mercilessly murdered by her.
- This lioness. "Don't you dare" indeed. A video by BBC Worldwide, "Hunting Lessons". Little cubs Lionas and sister Suki go out for a hunting lesson with their mother only to be faced with a cape buffalo attack. Video taken from wildlife adaptation 'Pride'.
- A tad downplayed in the sense that Bunny's not their mother but she would have gone overboard to protect them during the events of Bunny's Maternal Instinct but she would have indeed killed Madgie if she saw the absolute need to. However, she did give Madgie a hard slap in the end and had enough power in her that she not only outran the car that her sister was driving but stopped it without her sister slamming onto the brakes.
- An earlier story shows Toki to be this, considering that, if her baby, Rose, was harmed, she would have shot them without question and was prepared to if the situation had not diffused.
- The Anna Akana short You Wouldn't Understand exaggerates this, when Anna becomes enraged at anyone who presents anything that could prove the least bit dangerous to her baby (eg, a pesticide-ridden lemon peel, a sharp plastic knife).
- In the Nation States (all welcome/chill thread) series, Julian Yamada points a rifle at a man who threatens to snipe her and her adopted son after she tells the boy to hide under the bed. However, violence is (fortunately) avoided when the man started to sympathize with her as an adopted parent, revealing that his daughter was adopted,too. They ended up making peace.
- The Knights of Fandom is run by one of these. It's actually how they got started; she got so pissed off at seeing her "kids" on the receiving end of anonymous bullying that she organized a movement to counteract it.
- Surrogate example; Rosalina from SuperMarioLogan is much more caring towards Jeffy, a handicapped child, than Mario is, and is quick to call Mario out if he abuses Jeffy in any way.
- Kathleen De Vere of LoadingReadyRun said that if a coach ever tried to lay hands on her daughter, Penelope, she would slit his throat.
- This video involves a knight who decides to kill and take the heart of a baby dragon to give to a princess. They both soon find out the hard way its mother's wrath is a terrible thing indeed.
- DSBT InsaniT: Lisa is very protective of Sand Snake, and does not take kindly to others ordering him around or insulting him.
- Deconstructed in the Society of Virtue episode "Marvelous Boy and Ms. Dorothy", she can only use her superpowers when her son is in danger meaning in order to be a superhero she has to put him in danger.
- My Little Pony Meets: In The Stinger for Sonic meets, Derpy drops a piano on Scratch and Grounder, after their latest scheme to take out Sonic, almost resulted in her daughter being hurt.
- Nott of Critical Role turns out to be one to Caleb, surprising the rest of the party.Nott: Caleb and I have a very special relationship. It is that of a parent, and a child. But I am the parent, you DO understand that, correct? I protect HIM. He is MY boy, and I keep him safe. [...] It's MY job to protect him, because I love him, and I am his protector.
- Guardian: Amethyst Star and Dinky Hooves are threatened by Changelings. Enter Derpy, exeunt several Changelings into the afterlife.
- TierZoo discusses this in the "Are Mothers OP?" video in the form of parenting, a team strategy that greatly helps survival. Players are vulnerable at the start of the game, and having a very protective mother can greatly enhance the survival of new players. Dimetrodon was considered a top-tier Permian build mainly because of its protective mothers, since much of the meta involved raiding nests. Mammals became a dominant species because of having protective mothers, a behaviour passed down from the Synapsid builds like Dimetrodon. It's also noted that mammals get a "rage" powerup when defending their young, and that challenging an enraged mother is a very bad idea.
Mama Bear / Web Original