A fish declared extinct in the wild is being successfully reintroduced to its habitat. The Tequila fish, was 'missing' from the wild since 2003. But now, more than 1500 Tequila fish have been released in the wild in Southwest Mexico and their numbers are increasing.

The fish were grown in a joint effort between the UK and Michoacana University in Mexico. The decades-long effort has born fruit now.

The project started in 1998 when scientists at the university received five pairs of fish from Chester Zoo. These fish were carefully kept in university's labs. Over the years, these fish founded a colony. The scientists carefully grew these fish by providing them required nutrition and conditions.

However, it is often seen that animals bred in captivity cannot survive in the wild as there are factors like predators, competition for food, adverse environmental conditions that limit their growth. Hence, 'training' is needed.

When the colony of Tequila fish grew to have 40 pairs in lab, scientists introduced them to an artificial pond for their 'training'. Here, the fish were subjected naturally to factors they did not encounter in the lab. The fish flourished in the artificial pond and the numbers increased to 10,000. This indicated that they were coping well to conditions.

It was then the scientists decided to reintroduce the fish in the wild.

Reintroduction of the Tequila fish can become a model for freshwater species that are currently under threat. 
&nbsp;

A fish declared extinct in the wild is being successfully reintroduced to its habitat. The Tequila fish, was 'missing' from the wild since 2003. But now, more than 1500 Tequila fish have been released in the wild in Southwest Mexico and their numbers are increasing.

A fish declared extinct in the wild is being successfully reintroduced to its habitat. The Tequila fish, was 'missing' from the wild since 2003. But now, more than 1500 Tequila fish have been released in the wild in Southwest Mexico and their numbers are increasing. The fish were grown in a joint effort between the UK and Michoacana University in Mexico. The decades-long effort has born fruit now. The project started in 1998 when scientists at the university received five pairs of fish from Chester Zoo. These fish were carefully kept in university's labs. Over the years, these fish founded a colony. The scientists carefully grew these fish by providing them required nutrition and conditions. However, it is often seen that animals bred in captivity cannot survive in the wild as there are factors like predators, competition for food, adverse environmental conditions that limit their growth. Hence, 'training' is needed. When the colony of Tequila fish grew to have 40 pairs in lab, scientists introduced them to an artificial pond for their 'training'. Here, the fish were subjected naturally to factors they did not encounter in the lab. The fish flourished in the artificial pond and the numbers increased to 10,000. This indicated that they were coping well to conditions. It was then the scientists decided to reintroduce the fish in the wild. Reintroduction of the Tequila fish can become a model for freshwater species that are currently under threat.

Researchers design 'flying saucer' that can levitate on moon, asteroids

Last year was the second warmest on record, according to a NASA analysis which shows a continuing long-term warming trend.

Globally averaged temperatures in 2017 were 0.90 degrees Celsius warmer than 1951 to 1980 mean, according to scientists at NASA&#39;s Goddard Institute for Space Studies (GISS) in New York. That is second only to global temperatures in 2016.

In a separate, independent analysis, scientists at the National Oceanic and Atmospheric Administration (NOAA) concluded that 2017 was the third-warmest year on their record.

The difference in rankings is due to the different methods used by the two agencies to analyse global temperatures, although over the long-term the agencies&#39; records remain in strong agreement.

Both analyses show that the five warmest years on record all have taken place since 2010.

Since weather station locations and measurement practices change over time, there are uncertainties in the interpretation of specific year-to-year global mean temperature differences.

&quot;Despite colder than average temperatures in any one part of the world, temperatures over the planet as a whole continue the rapid warming trend we&#39;ve seen over the last 40 years,&quot; said GISS Director Gavin Schmidt.

The planet&#39;s average surface temperature has risen a little more than 1 degree Celsius during the last century or so, a change driven largely by increased carbon dioxide and other human-made emissions into the atmosphere.

Last year was the third consecutive year in which global temperatures were more than one degree Celsius above late nineteenth-century levels.

Phenomena such as El Nino or La Nina, which warm or cool the upper tropical Pacific Ocean and cause corresponding variations in global wind and weather patterns, contribute to short-term variations in global average temperature.

A warming El Nino event was in effect for most of 2015 and the first third of 2016.

Even without an El Nino event - and with a La Nina starting in the later months of 2017 - last year&#39;s temperatures ranked between 2015 and 2016 in NASA&#39;s records.

In an analysis where the effects of the recent El Nino and La Nina patterns were statistically removed from the record, 2017 would have been the warmest year on record.

Weather dynamics often affect regional temperatures, so not every region on Earth experienced similar amounts of warming.

Warming trends are strongest in the Arctic regions, where 2017 saw the continued loss of sea ice.

NASA&#39;s temperature analyses incorporate surface temperature measurements from 6,300 weather stations, ship- and buoy-based observations of sea surface temperatures, and temperature measurements from Antarctic research stations.&nbsp;

Globally averaged temperatures in 2017 were 0.90 degrees Celsius warmer than 1951 to 1980 mean, according to scientists at NASA's Goddard Institute for Space Studies (GISS) in New York. That is second only to global temperatures in 2016

Last year was the second warmest on record, according to a NASA analysis which shows a continuing long-term warming trend. Globally averaged temperatures in 2017 were 0.90 degrees Celsius warmer than 1951 to 1980 mean, according to scientists at NASA's Goddard Institute for Space Studies (GISS) in New York. That is second only to global temperatures in 2016. In a separate, independent analysis, scientists at the National Oceanic and Atmospheric Administration (NOAA) concluded that 2017 was the third-warmest year on their record. The difference in rankings is due to the different methods used by the two agencies to analyse global temperatures, although over the long-term the agencies' records remain in strong agreement. Both analyses show that the five warmest years on record all have taken place since 2010. Since weather station locations and measurement practices change over time, there are uncertainties in the interpretation of specific year-to-year global mean temperature differences. "Despite colder than average temperatures in any one part of the world, temperatures over the planet as a whole continue the rapid warming trend we've seen over the last 40 years," said GISS Director Gavin Schmidt. The planet's average surface temperature has risen a little more than 1 degree Celsius during the last century or so, a change driven largely by increased carbon dioxide and other human-made emissions into the atmosphere. Last year was the third consecutive year in which global temperatures were more than one degree Celsius above late nineteenth-century levels. Phenomena such as El Nino or La Nina, which warm or cool the upper tropical Pacific Ocean and cause corresponding variations in global wind and weather patterns, contribute to short-term variations in global average temperature. A warming El Nino event was in effect for most of 2015 and the first third of 2016. Even without an El Nino event - and with a La Nina starting in the later months of 2017 - last year's temperatures ranked between 2015 and 2016 in NASA's records. In an analysis where the effects of the recent El Nino and La Nina patterns were statistically removed from the record, 2017 would have been the warmest year on record. Weather dynamics often affect regional temperatures, so not every region on Earth experienced similar amounts of warming. Warming trends are strongest in the Arctic regions, where 2017 saw the continued loss of sea ice. NASA's temperature analyses incorporate surface temperature measurements from 6,300 weather stations, ship- and buoy-based observations of sea surface temperatures, and temperature measurements from Antarctic research stations.

2017 may be second warmest year on record: NASA

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Researchers design 'flying saucer' that can levitate on moon, asteroids

2017 may be second warmest year on record: NASA