The ability of animals to regenerate missing parts is a dramatic and poorly understood
aspect of biology. The sources of new cells for these regenerative phenomena have been …

Regeneration, the replacement of lost body parts, is widespread yet highly variable among
animals. Explaining this variation remains a major challenge in biology. Great strides have …

We present an organism-wide, transcriptomic cell atlas of the hydrozoan medusa Clytia
hemisphaerica and describe how its component cell types respond to perturbation. Using …

Cnidarians are the oldest extant lineage of venomous animals. Despite their simple
anatomy, they are capable of subduing or repelling prey and predator species that are far …

Hox genes encode conserved developmental transcription factors that govern anterior-
posterior (AP) pattering in diverse bilaterian animals, which display bilateral symmetry …

Wnt genes and β-Catenin signaling are involved in axial patterning processes in vertebrate
embryogenesis in setting up the Spemann–Mangold organizer in amphibian embryos. An …

Understanding the evolution of development in large part relies on the study of
phylogenetically old organisms. Cnidarians, such as Hydra, have become attractive model …

The ability of bottom‐dwelling marine epifauna to regenerate injured or lost body parts is
critical to the survival of individuals from disturbances that inflict wounds. Numerous studies …

The discovery of Hydra regeneration by Abraham Trembley in 1744 promoted much
scientific curiosity thanks to his clever design of experimental strategies away from the …

Changes in two contrasting ecosystems of the Benguela upwelling region, one dominated at
mid-trophic level by jellyfishes (Namibia, northern Benguela ecosystem, where small pelagic …