The source of embryonic nutrition for development varies across teleost fishes. A
parentotrophy index (ratio of neonate: ovulated egg dry mass) is often used to determine …

Sexual conflict is caused by differences between the sexes in how fitness is maximized.
These differences are shaped by the discrepancy in the investment in gametes, how mates …

How and why complex organs evolve is generally lost to history. The mammalian placenta,
for example, was derived from a single common ancestor that lived over 100 million years …

Long-whiskered catfish Sperata aor is a freshwater catfish known for its supreme flesh
quality and fast growth, whose captive-reared broodstock denotes a difficult challenge for …

Signal transducer and activator of transcription (STAT) proteins act downstream of cytokine
receptors to facilitate changes in gene expression that impact a range of developmental and …

The placenta is a complex life‐history trait that is ubiquitous across the tree of life. Theory
proposes that the placenta evolves in response to high performance‐demanding conditions …

Placentation evolved many times independently in vertebrates. Although the core functions
of all placentas are similar, we know less about how this similarity extends to the molecular …

The environment experienced by one generation can influence the phenotypes of future
generations. Because parental cues can be conveyed to offspring at multiple points in time …

Two cyprinodontids, Garmanella pulchra and Cyprinodon artifrons, coexist in a small
mangrove floodplain on the Yucatan Peninsula, enabling comparison of male territoriality in …

The capacity of regenerating a new structure after losing an old one is a major challenge in
the animal kingdom. Fish have emerged as an interesting model to study regeneration due …