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