A new study published in the journal Nature found that one-fifth of all reptile species could go extinct, largely due to human activities. The study, conducted by researchers at the University of Copenhagen, examined the conservation status of more than 10,000 reptile species and found that 21% of them are threatened with extinction.

The researchers identified several factors contributing to the decline of reptiles, including habitat loss, climate change, pollution, and the pet trade. They also found that some reptile species are more vulnerable to extinction than others, such as those with small population sizes, specialized habitat requirements, and slow reproductive rates.

The study highlights the urgent need for conservation efforts to protect reptiles from extinction. The researchers recommend several measures to help save reptiles, such as creating protected areas, reducing habitat loss, combating climate change, and regulating the pet trade. They also emphasize the importance of education and public awareness to raise awareness about the importance of reptiles in the ecosystem and the need to protect them.

Here are some additional key findings from the study:

* Amphibians are also facing a significant threat of extinction, with 41% of species threatened.

* Mammals are the least threatened group of vertebrates, with only 25% of species threatened.

* The extinction crisis is affecting all types of ecosystems, from tropical rainforests to deserts.

* The study highlights the need for urgent conservation action to prevent the extinction of millions of species.