An unusually elastic protein has been discovered in one of the most ancient groups of animals, the over 600-million-year-old cnidarians. The protein is a part of the "weapons system" that the ...
An artistic reconstruction of Auroralumina attenboroughii, based on a fossil dated to the Ediacaran Period and recently discovered in the U.K.'s Charnwood Forest. ((Dunn/Kenchington, et al., Nature ...
Piwi1-positive spermatogonia are shown in yellow; cell nuclei are in turquoise. Germ cell induction and all stages of gametogenesis can be visualized in these clonal animals. Please provide credit to ...