Life Habits
This species usually lives at 1–10 metres in depth on coral reefs. They will often lodge themselves in a crevice, so that only their spines can be seen, but individual urchins who can't find a suitable crevice will live in more exposed situations. Individuals that have been able to find a crevice usually will roam about one metre from their crevice at night during feeding. Diadema is very sensitive to light, and will often pick its crevice or resting place based on how much shade there is.
Diadema mostly eat algae, and sometimes seagrass. Starving urchins have been known to become carnivorous.
Read more about this topic: Diadema Antillarum
Famous quotes containing the words life and/or habits:
“The stabbing horror of life is not contained in calamities and disasters, because these things wake one up and one gets very familiar and intimate with them and finally they become tame again.... No, it is more like being in a hotel room in Hoboken let us say, and just enough money in one’s pocket for another meal.”
—Henry Miller (1891–1980)
“Wise living consists perhaps less in acquiring good habits than in acquiring as few habits as possible.”
—Eric Hoffer (1902–1983)