Shift in Thermal Preferences of Female Oviparous Common Lizards During Egg Retention: Insights into the Evolution of Reptilian Viviparity

Variation in eggshell characteristics an

Variation in eggshell characteristics and in intrauterine egg retention between two oviparous clades of the lizard lacerta vivipara: insight into the oviparity–viviparity continuum in squamates

✍ Benoit Heulin; Samuele Ghielmi; Nusa Vogrin; Yann Surget-Groba; Claude Pierre Gu 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 492 KB

## Abstract The concept of the oviparity–viviparity continuum refers to the wide range in the length of intrauterine egg retention and, hence, in the stage of embryonic development at oviposition existing in squamates. The evolutionary process underlying this continuum may involve not only a length