do mexican salamanders had already die out

As of my knowledge up until April 2023, wild populations of the Mexican axolotl (Ambystoma mexicanum) have not yet completely died out, but they are critically endangered and face an extremely high risk of extinction in the wild. The primary threat to their survival is habitat loss due to urbanization, pollution, and the introduction of invasive species.

However, a significant portion of the global axolotl population exists in captivity in zoos, aquariums, research facilities, and private collections around the world. These captive populations can serve as a backup in case the wild populations are lost and are also used for scientific research and education.

In January 2023, a team of researchers from Mexico's National Autonomous University of Mexico (UNAM) reported a major setback when they were unable to find any wild axolotls during a comprehensive search in their natural habitat around the Xochimilco Lakes. This led to news reports suggesting that wild axolotls might have already disappeared. However, without more definitive evidence, it's premature to declare the axolotl extinct in the wild.

Here are key points to remember:

1. Critically Endangered: Axolotls are still considered critically endangered in the wild, but no definitive evidence has been presented to confirm their complete extinction yet.

2. Captive Populations: Many captive populations exist globally, which can help preserve the species, maintain genetic diversity, and potentially facilitate reintroduction efforts.

3. Conservation Efforts: Ongoing conservation initiatives aim to protect and restore habitats and raise awareness about the axolotl's plight.

4. Future Research: Further studies and surveys are needed to accurately assess the status of wild axolotl populations.

While the outlook for wild axolotls is bleak, continued efforts in conservation, captive breeding, and reintroduction programs can help improve their chances of survival and prevent their complete extinction.