Sea-worms, sea-squirts: and then the first vertebrates, the lamprey-eels.
"Astounding Stories, May, 1931" by Various
At the foot of one pile there was some excitement, for a baby sea-squirt was setting out to see the world.
"The Sun's Babies" by Edith Howes
Scientists Identify Sea Squirt as Model for Alzheimer Disease Research and Drug Testing.
Similar to other sea squirts , Styela consumes plankton by filtering seawater through a bronchial sac inside its body cavity.
In contrast, sea squirts are possibly the closest invertebrate relatives to humans, Drs.
Type of sea squirt smothers rocks, sea shells and even ship hulls.