Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results.

They're lovingly called 'sea squirts', but certain marine soft-bodied animals, or tunicates, could cause a giant-sized problem in cold water areas like the Gulf of Maine. New research from the ...

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 ...

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 ...

Alaska has a near-pristine marine ecosystem--it has fewer invasive species in its waters than almost any other state in the U.S. But that could be changing. With help from local volunteers, biologists ...

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 ...

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 ...

Alaska has a near-pristine marine ecosystem—it has fewer invasive species in its waters than almost any other state in the U.S. But that could be changing. With help from local volunteers, biologists ...