![Tunicates are chordates that start out as tadpole-like larvae, then lose their notochord and live a sessile life as adults! : r/SpeculativeEvolution Tunicates are chordates that start out as tadpole-like larvae, then lose their notochord and live a sessile life as adults! : r/SpeculativeEvolution](https://i.redd.it/zn627jwkjf071.jpg)
Tunicates are chordates that start out as tadpole-like larvae, then lose their notochord and live a sessile life as adults! : r/SpeculativeEvolution
![Recently, researchers described a 500-million-year-old tunicate fossil species, which suggested that the modern tunicate body plan was already established soon after the Cambrian Explosion. Recently, researchers described a 500-million-year-old tunicate fossil species, which suggested that the modern tunicate body plan was already established soon after the Cambrian Explosion.](https://vajiramandravi.s3.us-east-1.amazonaws.com/media/2023/7/14/13/53/29/What_are_tunicates.jpg)
Recently, researchers described a 500-million-year-old tunicate fossil species, which suggested that the modern tunicate body plan was already established soon after the Cambrian Explosion.
![Discovery of 500-million-year-old fossil reveals astonishing secrets of tunicate origins | Department of Organismic and Evolutionary Biology Discovery of 500-million-year-old fossil reveals astonishing secrets of tunicate origins | Department of Organismic and Evolutionary Biology](https://oeb.harvard.edu/sites/hwpi.harvard.edu/files/oeb/files/artistic_reconstruction_of_m._thylakos_by_franz_anthony.jpg?m=1688649378)
Discovery of 500-million-year-old fossil reveals astonishing secrets of tunicate origins | Department of Organismic and Evolutionary Biology
![Half-billion-year-old sea squirt could push back origins of vertebrates, including humans | Science | AAAS Half-billion-year-old sea squirt could push back origins of vertebrates, including humans | Science | AAAS](https://www.science.org/do/10.1126/science.adj5955/abs/_20230707nid_tunicate.jpg)