Medusozoans, the Cnidarian subphylum, have multiple life stages including sessile polyps
and free-swimming medusae or jellyfish, which are typically bell-shaped gelatinous …

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 …

Jellyfish are radially symmetric organisms without a brain that arose more than 500 million
years ago. They achieve organismal behaviors through coordinated interactions between …

During oocyte development, meiosis arrests in prophase of the first division for a remarkably
prolonged period firstly during oocyte growth, and then when awaiting the appropriate …

Orientational order, encoded in anisotropic fields, plays an important role during the
development of an organism. A striking example of this is the freshwater polyp Hydra, where …

During whole-body regeneration, a bisection injury can trigger two different types of
regeneration. To understand the transcriptional regulation underlying this adaptive …

As the sister group to bilaterians, cnidarians stand in a unique phylogenetic position that
provides insight into evolutionary aspects of animal development, physiology, and behavior …

Rhizostomeae species attract our attention because of their distinctive body shape, their
large size and because of blooms of some species in coastal areas around the world. The …

Although fossil evidence suggests that various animal groups were able to move actively
through their environment in the early stages of their evolution, virtually no direct information …

The upside-down jellyfish Cassiopea increasingly occurs in many (sub-) tropical coastal
habitats such as mangrove forests, seagrass meadows, and coral reefs. Its mixotrophic …