Snake embryos coil, but how and why they corkscrew remains unexplored. Weber et al. find that the embryos wind up clockwise via buckling of the rapidly elongating axial body against the slow-growing, ...

The ontogenetic development, innervation, and morphology of the shoulder joint and forelimb muscles were investigated in 11 anuran species. The results reveal largely conserved splitting patterns of ...

Abstract. Adaptation to ant and/or termite consumption (myrmecophagy) in mammals constitutes a textbook example of convergent evolution, being independentl

Heredity - Complex range expansion and selective regime in the introduced Florida cane toad

A spatial and single-cell transcriptomics study across multiple mammalian species identifies epidermal BMP signalling as a functional requirement for rete ridge formation, providing insight into ...

By ALIANZA JAMBATO

Aim Studies on the geographical distributions of marine species have typically ignored the oceans' inherent 3D nature, instead focusing on two-dimensional patterns based on surface or near-surface a...

Imaging of a Devonian jawless fish reveals advanced features previously thought to be exclusive to jawed vertebrates, challenging the idea that jaws were the primary driver for the evolution of d...

New findings call into question one of the core assumptions about teeth. Adult male spotted ratfish, a shark-like species native to the eastern Pacific Ocean, have rows of teeth on top of their heads,...

Sharks are masters of tooth regeneration with a rapid and unlimited tooth supply. We present a comprehensive transcriptomic analysis across five distinct compartments from the embryonic shark mouth, c...

Teeth have been a prominent feature of most vertebrates for 400 million years, and the core regulatory network underlying embryonic tooth formation is deeply conserved. In frogs, however, odontogenesi...