9781881508342 | Oliver Pr Inc, June 1, 1996, cover price $21.95 | About this edition: Profiles the life and work of seven scientists who made important medical inventions, including Santorio and the thermometer, Laennec and the stethoscope, and Roentgen and the x-ray

9780531113691 | Franklin Watts, September 1, 1997, cover price $25.00 | About this edition: The ecology of tropical forests that grow at high altitudes is described through the eyes of scientists who live and work at the Monteverde Cloud Forest Preserve in Costa Rica.

9780531165195 | Franklin Watts, March 1, 2001, cover price $12.95 | About this edition: Describes the biologists who manage the Lizard Island Research Station and their activities studying and protecting the Great Barrier Reef.

9780531117194 | Franklin Watts, September 1, 2000, cover price $26.00 | About this edition: Describes the biologists who manage the Lizard Island Research Station and their activities studying and protecting the Great Barrier Reef.

9780613343336 | Turtleback Books, October 1, 2001, cover price $23.30 | About this edition: Describes the biologists who manage the Lizard Island Research Station and their activities studying and protecting the Great Barrier Reef.

9780816054619 | Chelsea House Pub, December 1, 2005, cover price $35.00 | About this edition: Presents biographical profiles of ten individuals who made major contributions to the field, including William Harvey, Antoni van Leeuwenhoek, Charles Darwin, Gregor Mendel, Sir Alexander Fleming, Rita Levi-Montalcini, and James Watson.

9780544339064 | Houghton Mifflin, January 27, 2015, cover price $9.99

9780547283050 | Houghton Mifflin, January 10, 2012, cover price $18.99

9780606373739 | Turtleback Books, January 27, 2015, cover price $20.85

9781467797191 | Lerner Pub Group, January 1, 2016, cover price $7.99

9781467795296 | Lerner Pub Group, January 1, 2016, cover price $26.65