I don't really expect to find endangered species at the local pet store.
I don't really expect to find endangered species at the local pet store.
They are common in scientific research as they have amazing regenerative abilities; they will often mistakenly bite each other's legs off as juveniles (they are not the smartest creatures) and then grow them back in a few weeks, good as new. They made it into the exotic pet trade and now they are quite common in captivity, but now critically endangered in the wild. There are attempts to breed and repopulate them, with some limited success.
Another interesting thing, in many countries and states it is legal to keep an axolotl and illegal to keep a Salamander.
They are actually fairly easy to keep in my experience, with two caveats. 1) you need to be able to keep the water below 24 Deg C, this means spending some money on chillers even in sub-tropical countries. 2) If you have a pair in the same tank (regardless of sexing) you need to be prepared to cull the eggs! (freeze them) Prices here went from ~$50NZ each down to around $10-15 each due to the Minecraft craze.
(in reality probably the law banning them as pets to protect them didn't include axolotls because the legislature didn't know they existed)
Those are just two reasons, but I'd bet they cover a lot of cases.
Do you also find it strange that e.g. various wolves are/have been considered endangered even though dogs exist?
I suppose it's because we assume "endangered in the wild" means something that doesn't breed well in captivity and so is hard to reintroduce.