Bony fishes are the principal group of backboned animals in contemporary aquatic settings.
Extant species are the focus of a vigorous program of macroevolutionary research, but …

Deep‐sea fishes have long captured our imagination with striking adaptations to life in the
mysterious abyss, raising the possibility that this cold, dark ocean region may be a key hub …

Colonization of a novel habitat is often followed by phenotypic diversification in the wake of
ecological opportunity. However, some habitats should be inherently more constraining than …

Fish swimming modes and the shape of both the fins and body are expected to affect their
swimming ability under different flow conditions. These swimming strategies and body …

Divergence in body shape is one of the most widespread and repeated patterns of
morphological variation in fishes and is associated with habitat specification and swimming …

Teleost fishes vary in their reliance on median and paired fins (MPF) or undulation of the
body (BCF) to generate thrust during straight-line, steady swimming. Previous work indicates …

Animals may respond to ecological heterogeneity by genetic differentiation or phenotypic
plasticity. Responses of organisms to their ecology can include adaptation at various levels …

It is widely believed that because of biomechanical trade‐offs, fish body shape and the
mode of propulsion are strong predictors of swimming performance, with the best cruisers …

To understand the complexities of morphological evolution, we must understand the
relationships between genes, morphology, performance, and fitness in complex traits …

Evolutionary comparisons between major environmental divides, such as between marine
and freshwater systems, can reveal the fundamental processes governing diversification …