Scooby-Doo! Team-Up Issue 18
Now we move onto the currently most recent Mammoth Mutt, who bounced into the pages of Scooby-Doo! Team-Up. The book was published by DC Comics and featured the Scooby Gang - Fred, Velma, Daphne, Shaggy and Scooby Doo himself - interacting with multiple characters from other Hanna-Barbera or DC properties. It was bi-monthly book, with the digital releases dividing each issue up into two, making the overall 50 in-prints into 100 digitals. So if you're aiming to look up this issue and others, keep in mind the numbers; #18 here is told across #35-36 in digital format.
In #18, Scooby teams up with Krypto, Ace the Bat-Hound, Wonder-Dog and Green Lantern G'Nort to travel to Sirius-9 to aid the SCPA, who we soon see in action against several feline foes. As we're introduced to the members, the fear-inducing Scaredy Cat has Tusky Husky cowering until Mammoth Mutt quite literally butts in and knocks the sinister kitty unconscious with such hefty humungous hindquarters. Psi-Ameese briefly disorients Mutt, but thankfully he's left wide open for Krypto to defeat. (Pic 1)
The SCPA suits are from the Silver Age, while Mutt's design is clearly harkoning back to Mammoth Miss due to the similar-looking breed and an inflated design bearing all limbs out providing easy mobility, while being significantly taller than everyone else. While this Mammoth Mutt is Miss-inspired, I'm assuming Mutt's male; despite seemingly having eyelashes in their second panel (which are only otherwise used for the female Yankee Poodle), these aren't present anywhere else in the story, plus Mutt's not referred in pronouns so that's all I can go on. So compared to the Krypto TV show, we've got a more balanced and faithful mix of the Mammoths - Mutt's name and gender with Miss's suit, breed and inflated looks.
One other thing of note - not once throughout this entire story do we see Mammoth Mutt deflated, so not only is there no exact scale of reference between being normal size or inflated, but it could easily be taken that there is no inflated size and that this is just Mutt's actual size. However, given the curve lines around Mutt when dropping in, we can infer that it's meant to represent inflating into this big spherical shape.
Mammoth Mutt and the fellow canine heroes enter the HQ, the Doghouse, revealing that the current members SCPA are just the latest iteration, inspired by the very first superheroes, the Canine Commandos, five members thought to be long-gone. The page also gives us a good size reference for Mutt alongside the rest, with Scooby going up to the arms. (Pic 2)
It very quickly turns out the Canine Commandos aren't just brought up for backstory - as Mammoth Mutt brings up, his body close to Krypto and Scooby, the supervillains weren't the reason why Scooby and co were summoned, as the Doghouse is apparently haunted. (Pic 3)
The group look out as the ghosts of the Canine Commandos materialise into the Doghouse, his body taking up a good third of the page's width and half it's length. (Pic 4)
Our heroes go head-to-head with the Commandos...except Mammoth Mutt, for some reason, who doesn't even appear in a full page view of everyone else (bar a scared Scooby) rushing towards the 'ghosts'. It could probably be down to pacing reasons, especially when the scene has more 'living' members than the CC, the panels having close tight views, and has to set up the confrontation, the Commandos being untouchable and getting the truth behind this in quick succession. (Pic 5)
It turns out the Canine Commandos aren't ghosts, but were trapped in another dimension for decades after an accident involving their enemy Dogaton in a war. Thankfully, G'Nort's power ring combined with the wilpower of the superheroic Earth-based dogs allows them to return home after so long, with the more anthro Yankee Poodle beside Mammoth Mutt and his large belly. (Pic 6)
Unfortunately, Dogaton was also freed as well and uses this opportunity to free the cats, leading to an exciting, busy action scene that once again doesn't feature or utilise Mammoth Mutt, which is even worse this time around since the single page spread here is a lot more open to show off the fights in play. One would assume a hero who's essentially a living bouncy ball would be useful, but apparently not. (Page 7)
Once the fighting is over and done with, the Canine Commandos aren't too sure about their place in the world seeing as they've been gone for 70 years, but Mammoth Mutt reassures them, specifically Yankee Poodle right in front of him, that the living legends will always have a place in the SCPA. (Pic 8)
This has been the most recent incarnation of the colossal corpulent canine, and it's a bit surprising to see just how little Mammoth Mutt actually does outside of his introduction; even the other SCPA members not fighting were at least seen during it. Still, it's a fun cute return to the character's roots, distilling Mutt and Miss into a simple streamlined representation in across a story that's overstuffed (much like his physique) with fellow dog heroes.