Similarly, early 20th century naturalists were skeptical that beaver were extant in the coastal streams of California.

The unit is named after John Dalton, an 18th century naturalist and teacher.

When 17th-century paintings of white Dodos were discovered by 19th century naturalists, it was assumed they depicted these birds.

The geological collections owned by Dinosaur Isle have evolved and expanded from collections made by 19th century naturalists.

The genus is named after Juan Ignacio Molina, a 19th century Chilean naturalist.

One 19th century naturalist described seeing an osprey mourn for a dead mate.

The generic name is in honour of Federico Cesi, a 17th century Italian naturalist.

Beginning with the 18th century naturalists, a movement arose that sought to understand the "universal laws of form" in order to explain the observed forms of living organisms.

This species was named in honor of the early 19th century French naturalist, Charles des Moulins.

In addition to collecting, Ayres catalogued and sketched the plants in the wild, as was common among nineteenth century naturalists.