Sex reversal explains some, but not all, climate-mediated sex ratio variation within a viviparous reptile.

Evolutionary transitions in sex-determining systems have occurred frequently yet understanding how they occur remains a major challenge. In reptiles, transitions from genetic to temperature-dependent sex determination can occur if the gene products that determine sex evolve thermal sensitivity, resulting in sex-reversed individuals. However, evidence of sex reversal is limited to oviparous reptiles.

Plasticity and evolutionary convergence in the locomotor skeleton of Greater Antillean lizards.

Plasticity can put evolution on repeat if development causes species to generate similar morphologies in similar environments. lizards offer the opportunity to put this role of developmental plasticity to the test. Following colonization of the four Greater Antillean islands, lizards independently and repeatedly evolved six ecomorphs adapted to manoeuvring different microhabitats.

Enhanced locomotor performance on familiar surfaces is uncoupled from morphological plasticity in Anolis lizards.

The radiation of Anolis lizards in the Caribbean is associated with a diversification of the functional match between morphology, habitat use, and locomotor performance. It has been hypothesized that the microhabitat a lizard is reared in can achieve a similar fit of form and function within a species. This predicts that plasticity in the locomotor apparatus is accompanied by changes in perching behavior or improved locomotor performance.

Low food availability during gestation enhances offspring post-natal growth, but reduces survival, in a viviparous lizard.

The environment experienced by a mother can have profound effects on the fitness of her offspring (i.e., maternal effects).

Mate familiarity and social learning in a monogamous lizard.

Social learning is thought to be advantageous as it allows an animal to gather information quickly without engaging in costly trial-and-error learning. However, animals should be selective about when and whom they learn from. Familiarity is predicted to positively influence an animal's reliance on social learning; yet, few studies have empirically tested this theory.

Maternal effects impact decision-making in a viviparous lizard.

Stressful conditions experienced during early development can have deleterious effects on offspring morphology, physiology and behaviour. However, few studies have examined how developmental stress influences an individual's cognitive phenotype. Using a viviparous lizard, we show that the availability of food resources to a mother during gestation influences a key component of her offspring's cognitive phenotype: their decision-making.