Because sea urchins have large numbers of eggs
Because the eggs make great omlettes
Because a sea urchin's egg is relatively big
Because sea urchins have large numbers of relatively big eggs
Purpuratus
Strongylocentrotus
Animalia
Echinoderms
Porcupine
Pentamerous
Dome
Toothpick
Other sea urchins
Algae
Small fish
Sea cucumbers
Intertidal area only
On the beach
Both intertidal area and subtidal areas
Subtidal area only
Spine
Mouth
Nose
Feet