"The abrupt manner in which whole groups of species suddenly appear in certain formations has been urged by several pa…"

"There is another and allied difficulty, which is much more serious. I allude to the manner in which species belonging…"

"I look at the geological record as a history of the world imperfectly kept, and written in a changing dialect; of thi…"

"The same Time which so ruthlessly assails the works and the monuments of man, was inspired with a zeal for the perpet…"

"When most physicians are asked about the realm of biosecurity, they often are able to discuss the subject in broad st…"

"A leaflet drops through your letter box advising on ways to avoid contracting and spreading . Your bag is searched as…"

"The secure and continuous production of and are key to U.S. national security. The introduction of foreign-origin or …"

"In a strict sense, biosecurity involves issues dealing directly with s and s, such as prevention of emergence, loss, …"

"Humanity depends on healthy ecosystems: they support or improve our quality of life, and without them, the Earth woul…"

"... what you can be sure of is that many organisms have declined to the point where they can never do the services fo…"