marine biology

You ever wonder what a Martian might think if he happened to land near an emergency room? He’d see an ambulance whizzing in and everybody running out to meet it, tearing the doors open, grabbing up the stretcher, scurrying along with it. ‘Why,’ he’d say, ‘what a helpful planet, what kind and helpful creatures.’ He’d never guess we’re not always that way; that we had to, oh, put aside our natural selves to do it. ‘What a helpful race of beings,’ a Martian would say. Don’t you think so?
― Anne Tyler, The Accidental Tourist, April 2002

Radical — a person who advocates thorough or complete political or social reform; a member of a political party or part of a party pursuing such aims.
• synonyms: revolutionary · progressive · reformer · revisionist · militant ·
• chemistry: a group of atoms behaving as a unit in a number of compounds.
See also free radical.
• the root or base form of a word.
• mathematics: a quantity forming or expressed as the root of another.