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