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The paper: F. Delsuc et al., "Tunicates and not cephalochordates are the closest living relatives of vertebrates," Nature, 439:965-8, 2006. (Cited in 116 papers) The finding: Using a data set of 146 ...

Researchers describe a 500 million-year-old tunicate fossil species. The study suggests that the modern tunicate body plan was already established soon after the Cambrian Explosion. Karma Nanglu says ...

More than 2,000 tunicate species are found throughout the world, with at least 45 varieties found in Hawaii. Pictured are the green barrel sea squirt variety found in waters off Palau. The barrels in ...

Karma Nanglu says his favorite animal is whichever one he’s working on. But his latest subject may hold first place status for a while: a 500-million-year-old fossil from the wonderfully weird group ...