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Technology Florida's falling lizards are getting used to cold winter temperatures

02:50  21 october  2020
02:50  21 october  2020 Source:   cnn.com

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Trump does not like lizards , especially on his Florida properties so he ordered the CIA to make the weather colder there. Unfortunately, cold weather in Flordia deludes his voters into believing there is no such thing as global warming and no amount of counter narrative by educated, intelligent people

Temperatures in South Florida dropped so low Wednesday morning that forecasters at the National Weather Service office in Miami warned residents to be on "It is so cold in Florida , they are setting record temperatures and you know they're afraid of the iguanas falling off the trees," Dean said on

During a cold snap in southern Florida in January, residents were warned to watch out for paralyzed lizards falling from trees.

a large reptile in the grass: An iguana immobilized from cold temperatures lays on grass in West Palm Beach, Florida, U.S., on Wednesday, Jan. 22, 2020. Cold-stunned iguanas fell from trees in South Florida Wednesday morning as temperatures in Miami hit 40 degrees and wind chills reached in the 20s and 30s in South Florida, The National Weather Service reported. Photographer: Saul Martinez/Bloomberg via Getty Images © Saul Martinez/Bloomberg/Getty Images An iguana immobilized from cold temperatures lays on grass in West Palm Beach, Florida, U.S., on Wednesday, Jan. 22, 2020. Cold-stunned iguanas fell from trees in South Florida Wednesday morning as temperatures in Miami hit 40 degrees and wind chills reached in the 20s and 30s in South Florida, The National Weather Service reported. Photographer: Saul Martinez/Bloomberg via Getty Images

The lowest temperatures in a decade stunned and immobilized the lizards, causing them to lose their grip from their usually safe perches in trees.

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Cold -stunned iguanas fall from South Florida trees. The National Weather Service issued a warning Social media posts poured in Wednesday morning, as early risers got a first-hand look at the The coldest temperature for Jan. 22 was back in 1985, when Miami saw a low of 30 degrees and Fort

Florida ' s warm, sunny weather and extensive wetlands support a paradise of diverse flora and fauna. Voracious predators like the Burmese python and Argentine black-and-white tegu lizard are the most famous The apes are used to living alongside the lizards , which are drawn to their food.

Comatose lizards littering the sidewalk might have been annoying for residents. For scientists, however, it was a unique opportunity to understand how the lizards, many of which aren't native to the region, are affected by extreme climate events. It turns out these reptiles are more adaptable to extreme temperatures than the researchers had thought, they said.

"When air temperatures drop below a critical limit, lizards lose the ability to move. Most commonly, the lowest daily temperatures occur at night while many diurnal (day-active) lizards are asleep," lead study author and biologist James Stroud, a postdoctoral research associate at Washington University in St. Louis, told CNN.

"As many diurnal lizards typically sleep above the ground, perched safely in and among leaves and branches, they may lose their grip if temperatures drop below this critical functioning limit."

Florida's falling lizards are getting used to cold winter temperatures

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As the weather gets colder in parts of the state, the cold -blooded animals slow down or become motionless The National Weather Service has issued a warning for some Florida residents: Beware of falling iguanas. As temperatures in parts of the state dip this week, the cold -blooded lizards slow

That night, fortunately for Frank, the temperatures fell to a record low. As a result, he discovered the substance had frozen to the stick, and a When the Northern Hemisphere gets the most sunlight, it experiences spring and summer. At the same time, the Southern Hemisphere gets autumn and winter .

The January cold snap wasn't the first time Floridians have faced lizards dropping out of trees. It can happen anytime the temperature gets below 45 degrees Fahrenheit.

Stroud and his collaborators in late January and early February collected 63 lizards from six different species around Miami, five of which were tropical species and not native to southern Florida.

The researchers took the lizards back to the lab at the University of Miami and individually cooled the animals until each one was too cold to respond to a gentle prod on its back limb.

"At this point, the lizard was removed from the cooler and the internal body temperature of the lizard was recorded as its lower temperature limit," Stroud said.

"Lizards were then allowed to return to room temperature; every single lizard in this study recovered back to full health after just a few minutes."

The team repeated this 10 weeks later to rule out a very quick, individual-level response.

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Winter is the season for colds and flu. Here, Femail.co.uk looks at some ways you can minimise your risk of Because people are much closer together physically during winter , this makes it easier for Nowadays, it is popularly used to boost the immune system in fighting colds and flu, and also as an

If you get cold , you risk catching a cold . Reading in poor light can damage your eyes. Researchers at Cardiff University’ s Common Cold Centre found that a fall in body temperature I made some new friends – they’re students too, very nice guys. I promised to come in winter , for the Christmas holidays.

The scientists were then able to compare the temperatures to earlier data they had gathered in 2016 for a study that forecasted how far north the non-native lizards could potentially disperse to from where they were first introduced in Miami, south Florida.

The lizard community, the researchers discovered, had responded in an unexpected way to the cold snap: All of them could withstand cold temperatures down to about 42 degrees Fahrenheit, regardless of their previous ability to tolerate cold.

"A major unexpected result of this study was that all species converged on the same new, lower level of thermal tolerance," Stroud said.

"While there was great variation in temperature tolerance before the cold event -- some, like the large-bodied brown basilisk, were very intolerant of low temperatures, while others like the Puerto Rican crested anole were more robust -- we observed that all species could now tolerate, on average, the same lowest temperature."

Stroud said from this study, which published Tuesday in the journal Biology Letters, it wasn't clear whether the lizards were adapting to the lower temperatures in a way that could be inherited by their offspring or whether it was a temporary adjustment to their physiological limits -- acclimation.

"If the changes in temperature tolerance that we observed are the result of adaptation, then it provides a fascinating insight into how evolution may need to be better incorporated into understanding species distributions," Stroud told CNN.

a small bird sitting on top of a lizard: Central American brown basilisks (Basiliscus vittatus) are among the members of a lizard community that converged on a lower temperature tolerance after a cold snap in Miami. © Courtesy Day's Edge Productions Central American brown basilisks (Basiliscus vittatus) are among the members of a lizard community that converged on a lower temperature tolerance after a cold snap in Miami.

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This is interesting!