Quantcast

Lizards Sleep Like Humans, Study Says

April 29, 2016



Lizards have sleep patterns that were previously thought to be in the domain of humans and other mammals, according to a new study published in the journal Science

German scientists studied the sleep patterns of the bearded dragon (Pogona vitticeps), recording the brain activity of the lizards and found that the popular pet lizard had cycles of eye movements and deep sleep. They found that the sleep rhythm of the lizard is faster than that of humans and other mammals as well as more regular, which results in hundreds of shorter cycles of slow wave sleep and REM.

bearded dragon

gina cioli/lumina media

A study looking at the sleep patterns of bearded dragons suggest that they have sleep patterns, including REM that is similar to that of humans.
 

They also found that all this activity occurs in a different part of the brain than in mammals.

"Although similar to mammalian sleep, lizard slow-wave sleep and REMs resemble a stripped-down version of the richer mammalian repertoire," the scientists wrote in their paper.

The sleep patterns that reptiles, birds, and mammals suggests that there is a common ancestor that evolved between 300 and 320 million years ago, according to the study. 

"Those were probably small and lizard-like animals," said lead researcher Dr Gilles Laurent of the Max Planck Institute for Brain Research in Frankfurt, Germany. "They lived between 300 and 320 million years ago, at a time when the earth's continents formed a single land mass."

Related Articles

Former Wild Recon Host Donald Schultz Accused Of Illegally Selling Endangered Lizards

Ex Animal Planet host charged with selling Iranian desert monitors to undercover USFWS agents

Zoo Atlanta's Komodo Dragon, Slasher Dies At 20

Reptile was euthanized due to age-related complications.

Komodo Dragon Attacks Park Employees At Komodo National Park

Employees both bitten in leg by Varanus komodoensis.

Add your comment:
Edit Module
Edit ModuleShow Tags Edit Module
Edit Module

Cast Your Vote

Where is your dream herping destination?



 

Edit ModuleShow Tags Edit ModuleEdit Module

Find Us On facebook

Edit Module