Toxicologists study poisons and chemicals and their effect on plants and animals. They may also study or develop antidotes to poisons.
In general, you need a university degree in biology or a related field.
To be a research scientist in biology or a related field, you need a master's or doctoral degree to work in government/business. You must also have post-doctoral research experience for employment in academic or research institutions.
Most recent entrants have an undergraduate university degree, and almost 3 in 10 have a graduate degree.