The Axolotl

The axolotl’s not like other salamander types.
For one, it’s neotenic, so it doesn’t change its stripes;
That is, it keeps its larval traits and stays forever young.
It always lives in water, though it does develop lungs.

In keeping with this constancy, it also can regrow
Most body parts in little time. Just how? We’d like to know,
Especially in light of its superior resistance
To cancer next to mammals’: Could it be of some assistance?

Alas, although it’s popular for keeping as a pet
Or eating in some cultures, it is very hard to get.
In part, it is elusive, but it’s also gotten rare;
It’s critically endangered in the wild, so let’s take care.