Does the jellyfish hatched from eggs?

Jellyfish don't hatch from eggs in the traditional sense. Here's a breakdown of their life cycle:

* Adult Jellyfish (Medusa): The familiar, bell-shaped form we think of as a jellyfish. They reproduce sexually, releasing sperm and eggs into the water.

* Fertilization: When sperm and egg meet, they fertilize, forming a planula larva.

* Planula Larva: This microscopic, free-swimming larva eventually settles on a solid surface.

* Polyp Stage: The planula larva develops into a polyp, a stalk-like structure that attaches to the seafloor. Polyps can reproduce asexually, creating clones of themselves.

* Ephyra Stage: Eventually, the polyp will bud off small, free-swimming versions of the jellyfish called ephyrae.

* Adult Jellyfish (Medusa): The ephyrae grow into the familiar adult jellyfish form, completing the cycle.

So, while jellyfish do start from eggs, they don't hatch from them in the same way a bird or reptile would. Instead, they go through a series of distinct stages.