Sponges [Porifera] are the phylogenetically oldest metazoan phylum still extant today; they share the closest relationship with the hypothetical common metazoan ancestor, the Urmetazoa. During the ...

Porifera has received a $3 million grant from the Defense Advanced Research Projects Agency to develop a small, portable, self-cleaning desalination system.

Sponges (phylum Porifera) traditionally are represented as inactive, sessile filter-feeding animals devoid of any behavior except filtering activity. However, different timelapse techniques ...