The young sea urchins develop inside womb like pouches inside the shell of female urchins until they are about 4 millimeters long and it's spines are fully developed.
star fish are related to sea urchines, sea cucumbers, and the clitterus. that's what their related to.
they give birth
No mermaids and sea urchins are different creatures. However if a very young mermaid were to hang about the sea lanes not doing anything in particular then she could be termed a 'sea urchin' if we were to take the language loosely enough.
In the sea.
sea horse and a pipefish
No.
crustations, clams, mussles, sea urchines, hard shelled invertrabites, fish sea cucumbers, snails, benthick in vertabraites. wolf eels have also been known to go after octopuses
No. A sea otter does not give birth or has milk to feed its young.
No, sea mammals give birth to live young.
Sea snakes do not lay eggs. They give birth to live young.
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yes