The iguanid lizard Platynotus semitaeniatus is adapted morphologically and behaviorally to utilize rock crevices to escape predation. Attendant reproductive adaptations reveal an adaptive compromise ...

1. Life-history theory predicts that investment of acquired energetic resources to a particular trait denies those same resources from being allocated to a different trait, resulting in life-history ...

A team led by biologists at The University of Texas at Arlington has published a study supporting the theory that species that reproduce asexually have more harmful genetic mutations than those ...

Lizards that once dwelled in forests but now slink around urban areas have genetically morphed to survive life in the city, researchers have found. The Puerto Rican crested anole, a brown lizard with ...

For the rose-bellied lizard of Mexico and Southern Texas, not all body parts are created equal. In some male lizards, the left testis has evolved to fill with melanin, so it becomes darker than the ...