Sea anemones are known to eat sea urchins, but it is not as common a source of mortality as some of the others featured in this section. An injured urchin would likely be more susceptible to being eaten by a sea anemone than an uninjured one.
Internment is the imprisonment or confinement of people, commonly in large groups, without trial. The Oxford English Dictionary gives the meaning as: The action of 'interning'; confinement within the limits of a country or place..arly civilizations such as Assyria used forced resettlement of populations as a means of controlling territory, but it was not until much later in the late 19th and 20th centuries that records exist of groups of civilian non-combatants being concentrated into large prison camps.
The act of retaining a person or property, and preventing the removal of such person or property. Arrest. The detention may be occasioned by accidents; e.g., the detention of a ship by calms, or by ice; or it may be hostile; e.g., the detention of persons or ships in a foreign country, by order of the government.