The Caterpillar of the Small Elephant Hawk-moth (Chærocampa porcellus)
The Caterpillar of the Elephant Hawk-Moth (Chærocampa elpenor). First stage
The Caterpillar of the Elephant Hawk-Moth (Chærocampa elpenor). Second Stage
The Caterpillar of the Elephant Hawk-Moth (Chærocampa elpenor). Just before the second moult.
The Caterpillar of the Elephant Hawk-Moth (Chærocampa elpenor). Third Stage
The Caterpillar of the Elephant Hawk-Moth (Chærocampa elpenor). Fourth Stage
The Caterpillar of the Elephant Hawk-Moth (Chærocampa elpenor). Fifth Stage
The Caterpillar of the Elephant Hawk-Moth (Chærocampa elpenor). Full grown
The Caterpillar of the Eyed Hawk-Moth (Smerinthus ocellatus)
The Caterpillar of the Marbled White Butterfly (Arge galathea)
King Snake
Rainbow Darter
Long-eared Sunfish
Bat
Sleeping Bat
Nest of Phœbe
Nest of Red-eyed Vireo
Baltimore Oriole and Nest
A Wolf
Nest of the Chicadee
Chipmunk
Turtle
A Lamprey
Chinch Bug
Thirteen-Spotted Lady Beetle
Pouched Frog
The Surinam Toad
Chrysalis of Tomato Worm
Centipede
Trout
Female Stickleback Laying Eggs in Nest
Male Stickleback Watching Eggs in Nest
Female Stickleback about to Enter Nest
Hand of Gorilla, Orang, Gibbon, and Chimpanzee
Head of Orang-Utan
chimpanzee
Gorilla
tadpoles
Frog
A Frog
Rooster