Axolotl or water-bear !
The former for their regenerative ability; the latter for their imperishability .
Here's some rad excerpts from Tartigrade wikipedia page on how insane these little dudes are
Tardigrades have survived all five mass extinctions.
Tardigrades are the first known animal to survive after exposure to outer space.
...they can go without food or water for more than 30 years, only to later rehydrate, forage, and reproduce.
Tardigrades are thought to be able to survive even complete global mass extinction events due to astrophysical events, such as gamma-ray bursts, or large meteorite impacts.
Would be pretty spooky if they weren't so tiny and kinda cute
The enterprising beaver.
https://www.youtube.com/watch?v=iyNA62FrKCE
Human
Followed closely by all other apes and monkes, and some types of birds (the really smart ones, like crows and parrots and shit), and dolphins
Hamster. Very small. Very soft. Very kind. Absolutely pure creatures
Raccoons are the best and I will not be taking any questions
I honestly just love any animal with human-like hands. I work with rats and I love them for the same reason.
.jpg){kind=link}