Re-evolution of lost complex morphological characters has been proposed for several
characters, including insect wings, limbs, eyes in snakes, and digits in lizards, among others …

It has been suggested repeatedly that the evolutionary transition from oviparity (egg‐laying)
to viviparity (live‐bearing) in reptiles is irreversible. However, these adaptive arguments …

Dollo's law of irreversibility states that once a complex trait has been lost in evolution, it
cannot be regained. It is thought that complex epistatic interactions and developmental …

Changes in parity mode between egg‐laying (oviparity) and live‐bearing (viviparity) have
occurred repeatedly throughout vertebrate evolution. Oviparity is the ancestral amniote state …

Viviparity has putatively evolved 115 times in squamates (lizards and snakes), out of only~
140 origins in vertebrates, and is apparently related to colder climates and other factors such …

Since the early 1970s, boine snakes (Boidae: Boinae) have served as a prime example of a
group whose current distribution was shaped by vicariant events associated with the …

Viviparous (live-bearing) vertebrates have evolved repeatedly within otherwise oviparous
(egg-laying) clades. Over two-thirds of these changes in vertebrate reproductive parity mode …

The evolution of viviparity in squamates has been the focus of much scientific attention in
previous years. In particular, the possibility of the transition from viviparity back to oviparity …

Four New World genera of dwarf boas (Exiliboa, Trachyboa, Tropidophis, and Ungaliophis)
have been placed by many systematists in a single group (traditionally called …

It is of fundamental importance for the field of evolutionary biology to understand when and
why major evolutionary transitions occur. Live‐bearing young (viviparity) is a major …