The Parva Naturalia (a conventional Latin title first used by Giles of Rome: "short treatises on nature") are a collection of seven works by Aristotle, which discuss natural phenomena involving the body and the soul. They form parts of Aristotle's biology. The individual works are as follows (with links to online English translations):
De Juventute et Senectute, De Vita et Morte, De Respiratione
Editions
All the Parva Naturalia
Aristote: Petits traités d'histoire naturelle (with French translation and brief notes), ed. René Mugnier, Collection Budé, 1953
Aristotle: Parva Naturalia (with extensive commentary in English), ed. W. D. Ross, Oxford, 1955 (repr. 2000, ISBN0-19-814108-4)
Aristotelis Parva Naturalia Graece et Latine (with Latin translation and notes), ed. Paul Siwek, Rome: Desclée, 1963
Parva Naturalia with On the Motion of Animals, tr. David Bolotin, Mercer University Press, 2021.
Multiple treatises
David Gallop, Aristotle on Sleep and Dreams: A Text and Translation with Introduction, Notes, and Glossary. Petersborough, Ontario: Broadview Press, 1990, ISBN0-921149-60-3 (On Sleep, On Dreams, and On Divination in Sleep)