Related topics: species · fossil

Small But Mighty Female Lizards Control Genetic Destiny

(PhysOrg.com) -- "Be faithful in small things because it is in them that your strength lies." Mother Teresa's words echo throughout the world. They ring particularly true in the biological kingdom among brown anole lizards, ...

Lizard moms choose the right genes for the right gender offspring

(PhysOrg.com) -- Two Dartmouth biologists have found that brown anole lizards make an interesting choice when deciding which males should father their offspring. The females of this species mate with several males, then produce ...

Warm-blooded dinosaurs worked up a sweat

(PhysOrg.com) -- Were dinosaurs endothermic (warm-blooded) like present-day mammals and birds or ectothermic (cold-blooded) like present-day lizards? The implications of this simple-sounding question go beyond deciding whether ...

Reptiles stood upright after mass extinction

(PhysOrg.com) -- Reptiles changed their walking posture from sprawling to upright immediately after the end-Permian mass extinction, the biggest crisis in the history of life that occurred some 250 million years ago and wiped ...

Tropical lizards can't take the heat of climate warming

From geckos and iguanas to Gila monsters and Komodo dragons, lizards are among the most common reptiles on Earth. They are found on every continent except Antarctica. One even pitches car insurance in TV ads. They seemingly ...

Four, three, two, one... pterosaurs have lift off

Pterosaurs have long suffered an identity crisis. Pop culture heedlessly — and wrongly — lumps these extinct flying lizards in with dinosaurs. Even paleontologists assumed that because the creatures flew, they were birdlike ...

Two new species of racerunner lizard discovered in Iran

A team of zoologists and biologists affiliated with several institutions in Russia and Iran has identified two new species of racerunner lizards in Iran. In their paper published in the journal Zootaxa, the group describes ...

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