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Sea Squirt — printable fact sheet
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Sea Squirt
Ascidiacea
Sea squirts are marine invertebrates belonging to the class Ascidiacea. They have a sac-like body covered by a tough outer 'tunic' and are known for their sedentary lifestyle, attaching themselves to rocks, shells, or submerged surfaces. Sea squirts filter-feed by drawing in wat…
Did you know?
- Sea squirt larvae possess a backbone-like structure, but lose it as they transform into adults—a key link to the evolutionary origins of vertebrates.
- Sea squirts have a primitive notochord as larvae, making them close relatives of vertebrates. Some species can regenerate body parts if injured. Despite their simple appearance, they have complex chemical defenses that deter predators.
What I learned
Draw the sea squirt
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