The relationship between genome size and the percentage of transposons in 161 animal
species evidenced that variations in genome size are linked to the amplification or the …

The vertebrate water-to-land transition and the rise of tetrapods brought about fundamental
changes for the groups undergoing these evolutionary changes (ie stem and early …

Metazoans display a tremendous diversity of developmental patterns, including complex life
cycles composed of morphologically disparate stages. In this regard, the evolution of life …

Deep phylogenetic relationships of the largest salamander family Plethodontidae have been
difficult to resolve, probably reflecting a rapid diversification early in their evolutionary …

Observations on the ontogeny and diversity of salamanders provided some of the earliest
evidence that shifts in developmental trajectories have made a substantial contribution to the …

A fundamental goal of ecology is to understand how the physical environment influences
intraspecific variability in life history and, consequently, fitness. In streams, discharge and …

Phenotypic convergence has confounded evolutionary biologists for centuries, explained as
adaptations to shared selective pressures, or alternatively, the result of limited …

Paedomorphosis is an important evolutionary force. It has previously been suggested that a
soft-substrate sediment-dwelling (infaunal) environment facilitates paedomorphic evolution …

Plethodontid salamanders exhibit biphasic, larval form paedomorphic, and direct develo**
life cycles. This diversity of developmental strategies exceeds that of any other family of …

Heterochronic development has been proposed to have played an important role in the
evolution of echinoderms. In the class Ophiuroidea, paedomorphosis (retention of juvenile …