Nematostella vectensis is a brackish water sea anemone of the family Edwardsiidae. The
polyps can be reared with a full life cycle in laboratories with direct access to seawater or in …

Recent investigations by means of high-tech morphology, evo-devo studies and molecular
data suggest that the taxon Xenacoelomorpha (Nemertodermatida and Acoela plus …

Anderson AK, Phelps EA (2002) Is the human amygdala critical for the subjective
experience of emotion? Evidence of intact dispositional affect in patients with amygdala …

Sponges (Porifera) are among the simplest living and the earliest branching metazoans.
They hold a pivotal role for studying genome evolution of the entire metazoan branch, both …

Germ layer formation and axial patterning are biological processes that are tightly linked
during embryonic development of most metazoans. In addition to canonical WNT, it has …

Various Hydra species have been employed as model organisms since the 18th century.
Introduction of transgenic and knock-down technologies made them ideal experimental …

Goosecoid (Gsc) expression marks the primary embryonic organizer in vertebrates and
beyond. While functions have been assigned during later embryogenesis, the role of Gsc in …

Microfossils from the Ediacaran Weng'an Phosphate Member of the Doushantuo Formation
(Guizhou Province, southern China) have received widespread attention. The Doushantuo …

The determination of the body axis in the last common ancestor of bilaterian animals is still a
matter of debate. While Hox genes pattern the formation of the primary, anteroposterior body …

The leap from simple unicellularity to complex multicellularity remains one of life's major
enigmas. The origins of metazoan developmental gene regulatory mechanisms are sought …