By Victoria Gill
Science correspondent.
The image is from Chester Zoo.
The image caption is.
The fish is 7 cm long.
There's not much interest in terms of global conservativism.
The Tequila fish was declared extinct but has now been returned to the wild.
It is back in the rivers of south-west Mexico.
The reintroduction is being held up as an example of how freshwater species can be saved.
The image is from Chester Zoo.
The image caption is.
The site is in Jalisco, south-west Mexico.
According to the International Union for the Preservation of Nature, freshwater habitats are some of the most threatened on Earth.
Pollution and other threats to the environment are putting pressure on clean water and food supplies that are dependent on rivers and lakes.
The local community who live close to the fish release site in Jalisco, Mexico are playing a key role in monitoring the water quality of the rivers and lakes.
The local people are the ones doing the long-term conservancies, according to the professor from the Michoacana University of Mexico.
This is the first time that an extinct fish has been successfully reintroduced in Mexico, so it's a real landmark for the future of the fish.
The image is from Chester Zoo.
The image caption is.
The species population is increasing despite the initial release of 1,500 fish.
It's a project that has set an important precedent for the future of fish species in the country that are threatened or even extinct in the wild.
The population of fish is now expanding into the river system after 1,500 were released.
The image is from Chester Zoo.
It is a partnership between Mexican and UK Conservators that has been going on for decades.
The English aquarist Ivan Dibble delivered five pairs of fish from Chester Zoo to the Michoacana University of Mexico's Aquatic Biology Unit at the start of the project in 1998. Over the next 15 years, experts at the universities' laboratory maintained and expanded the new colony of 10 fish.
The fish were released into large ponds at the university in preparation for the return to the wild. After four years, the population was estimated to have grown to 10,000 individuals, which was the source for the reintroduction to the wild.
The caption is media.
The nuns are helping save a species.
The achoque is a close relative of the axolotl that lives in just one lake in the north of Mexico and faces very similar threats.
The local group of nuns who run a captive breeding facility for the animals saved the amphibian from extinction.
The image is from the same person as,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
The image caption is.
Wetlands are disappearing around the world and are dependent on damsels and dragonflies.
"This shows that animals can re-adapt to the wild when reintroduced at the right time and in the right environments", says the man.
Follow Victoria on social media.
It's called conservativism
Fish.
There is a biodiversity.
Nature.
The environment.
Mexico.
