History Main / HumanlikeAnimalAging

* In the first ''WesternAnimation/{{Madagascar}}'' when Marty the zebra turns 10, it's hinted that he is middle aged at that age. Zebras can live to be 40 years old in captivity.

* We could know that Master Shifu in ''WesternAnimation/KungFuPanda'' is old by his white mustache, bushy eyebrows and grayish fur (and not to mention [[MiniatureSeniorCitizens being really small]]).

* ''Franchise/SonicTheHedgehog'':
** Sonic and his friends. Most of them, including Sonic himself, are stated to be teenagers between 14-16, while the younger ones such as Tails are between 6-8. Amy Rose is in the middle at 12. Their ages are a case of AllThereInTheManual, but they typically do behave the same as humans that age.
** Sonic's origin as given in the American ''Script/SonicTheHedgehogBible'' averts this. Sonic doesn't age like an actual hedgehog, but he doesn't age like a human either. It took only a year for him to turn into the equivalent of a teenager.

* While the movies avert this ''WesternAnimation/TheLionGuard'' does not. Kion and Kiara are not litter-mates yet are close in age. In real life lions have larger gaps between litters and Kiara should look older.
* In ''WesternAnimation/DuckTales2017'' ducks are actually born from eggs which has a surprising amount of plot relevance, [[spoiler: because it means Della has never seen her sons alive in person. This drama obviously wouldn't be possible if they were born alive like humans are.]]

* Many of the forms are played straight with Rex from ''WesternAnimation/{{Gawayn}}''

* Inverted in ''VisualNovel/{{Nekopara}}'' as a case of [[InvertedTrope Animallike Human Aging]] -- all catgirls grow and age like their real life counterpart. The most absurd example goes to Coconut; being a Maine Coon, she has the body of an adult woman despite being ''[[YoungerThanTheyLook 1 year old]]''.

* In the ''WesternAnimation/PhineasAndFerb'' episode "Phineas and Ferb's Quantum Boogaloo" Candace travels 20 years into the future where Perry is still alive, though old. In reality, platypodes only live for 10 years.

-->--''[[Literature/TheUnderlandChronicles Gregor and the Prophecy of Bane]]''

* '''Human-like Lifespan/Longevity:''' This is when an animal character has the same longevity as a human, that is, live as long as a human. Depending on the species this is either accomplished by shortening or lengthening their life span, though the lengthening of the short-lifespanned animals form is far more common. A way to avert this is to use the species' normal life span, and give a multiplier to calculate how old the animal would be if it was a human. For example, a normal year would be seven "dog-years": a two-year-old dog is about as old as a fourteen-year-old human.

* Inverted with ''TabletopGame/Warhammer40000'''s Space Wolves, who undergo Animal-like Superhuman Aging: As they grow older, Space Wolves gain wolf-like characteristics thanks to a mutation of their geneseed: their hair grows gray (from its original black, blond or red), their canine teeth grow more proeminent, and their eyes turn gold. Some even go too far, becoming animalistic Wulfen.

* In "The Old Gray Hare," after a FlashForward to the year 2000, a 70-or-so-year-old WesternAnimation/BugsBunny is shown with white chin whiskers.

* Originally averted by ''ComicStrip/{{Garfield}}'', who mentions on his second birthday that the human equivalent of fourteen, and complains about aging ever since he turned four. Later played straight, as he's still relatively healthy and active over 40, though the average lifespan of a housecat is 12-14 years, and the oldest cat ever recorded lived for 38 years.

* Originally averted by ''ComicStrip/{{Garfield}}'', who mentions on his second birthday that the human equivalent of fourteen, and complains about aging ever since he turned four. Later played straight, as he's still relatively healthy and active over 30, though the average lifespan of a housecat is 12-14 years at the least and 20 years at the most. It's possible for cats to live longer than 20 however. In Scotland, there was a cat that was reported to have lived to be 43 years old. While there are unconfirmed reports of cats living longer, like the aforementioned report, the oldest cat ever recorded, Creme Puff, was 38 years and died three days later.

* ''VideoGame/SonicTheHedgehog'':

* In every [[Franchise/TeenageMutantNinjaTurtles TMNT]] incarnation, the Turtles are UpliftedAnimals that are aging like humans (such as how they are fifteen and act like American teenagers). Master Splinter depends on the writer: if he's a mutated human, then he's still aging like a human despite looking like a rat. However, if he's an UpliftedAnimal like the Turtles, then he's a rat who's natural lifespan has been extended. [[note]] While Splinter's canon age is rarely (if ever) stated, most rats only live to be a year or two. [[/note]]

* Newborn lions in ''WesternAnimation/TheLionKing'' are basically the animal equivalent of the ThreeMonthOldNewborn trope. They're large and already have their eyes open.

* Many coming of age Disney movies that feature {{Nearly Normal Animal}}s, like ''WesternAnimation/{{Bambi}}'', ''WesternAnimation/TheLionKing'', ''WesternAnimation/LadyAndTheTramp'', and ''WesternAnimation/TheFoxAndTheHound'' avert this by showing the animals develop and age like their real counterparts.