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This many-legged land crustacean curls into a ball when threatened.
The giant isopod is a large, aquatic, scavenging relation to the wood louse.
Be careful not to get stung by this dangerous cnidarian.
The box jellyfish is one the only jellyfish species to have true eyes.
This land mollusk has two eyestalks and two tentacles, and is an enemy of gardeners.
Gastropods move with a single 'foot' on their stomach.
This spiny echinoderm has five pointed teeth around the circumference of its mouth.
The name 'urchin' is an old word for 'hedgehog'.
This annelid is a welcome sight in gardens, eating dirt and excreting nutrient-rich soil.
Contrary to popular belief, they don't regenerate when cut in half.
This many-eyed predator usually sets traps made from a substance it excretes from its spinnerette.
A strand of spider silk is as strong as a piece of steel of the same size.
This is the simplest of all animals, and shares its name with a cleaning product.
Sponges unlike other animals, do not have organs or even tissues.
This loud summer insect tends to leave its empty exoskeleton in the open.
A red-eyed variety of cicada emerges every seventeen years.
Though named after a mythical beast, this budding cnidarian has almost nothing in common with its namesake.
When in danger, hydroids can reduce themselves to a tiny, jellylike sphere.
This iconic cephalopod has arms (not tentacles) and is one of the smartest animals in the sea.
Though many think that the correct plural is 'octopi', it is actually 'octopuses' or 'octopodes'.
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