Three near-identical U.S. lizards have kept their identities for millions of years in a way that researchers compare to the ...

A rare lizard species in Colorado reacts to stress-inducing loud noises by eating, a study found. Researchers studied the Colorado checkered whiptail, an all-female lizard species, in 2021. Noise ...

Most nature lovers know that the more colourful a male fish, reptile, or bird, the more likely it is to attract a female and to have healthy offspring. Females, on the other hand, tend to be drably ...

Australian lizards are attracted to females with the brightest orange patches -- but preferably not too large -- on their underbelly, according to research. Lake Eyre dragon lizards are found ...

A student saw an elusive animal sleeping on a trail in Malaysia and discovered the first female Drogon’s false garden lizard ever recorded. Photo from Zijia Hong, shared by Evan S. H. Quah As the ...

For a normal reproductive cycle to occur, female Lacerta sicula must be exposed to a relatively low temperature during the autumn season. When animals captured between September and January are held ...

In a first for its species and reptilian Agamidae family, a female Asian water dragon at the National Zoo successfully produced offspring without the help of a male. The process, known as facultative ...

When zoologist Ivan Sazima went for a walk in the park in southeastern Brazil on a warm September day in 2013, he was hoping to find noteworthy animal behavior to study. But he did not expect to ...

Journal of Herpetology, Vol. 42, No. 2 (Jun., 2008), pp. 332-336 (5 pages) We studied litter size, size at birth, and relative litter mass (RLM) in two populations of the crevice-dwelling lizard ...

If you're a new reptile pet parent not sure where to begin, we've got more than 150 possible names for lizards to help you ...

Lizard penises evolve at a rapid rate—likely in an effort to satisfy the changing shape and size of female lizard genitals. Receive emails about upcoming NOVA programs and related content, as well as ...

As the evening sun trickled through the forest in Malaysia, an elusive lizard searched for a bed. It settled on some plants and fell asleep. But the night would not be a restful one. “Our student ...