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- Bird on a flower
- Thelemark cows of Norway
- Owl 2
- Bird
- Ducks Swimming (2)
- Black Mallards
- Black Mallard Ducks
- Woodpecker
- The Swarm spirit
- Bird 2
- Owl
- Bird 3
- Two toads
- Bird 4
- Mouth-parts of Honey Bee
- Pear
- Bees on apple blossoms
- Rose Hip cut lengthwise to show the seeds
- A Toad
- Apple Flower
- A frog eyeing his lunch
- Frogs
- berries of the bittersweet
- Apple cut lengthwise
- A frog
- Jack-in-the-pulpit
- Apple cut crosswise
- A Rose hip
- Pear cut lengthwise
- Apples
- Wild Beach plums
- Fresh-Water Hydra
- Grass border
- cherry blossom cut open
- dandelion seedbox
- Burdock
- Indian cucumber root
- Chætosoma scaritides
- Colymbetes rufimanus - Larva
- Chokeberries
- Cherry Flower 2
- Pterostichus opulentus
- Staphylinus oculatus
- barberries
- Oral and digestive system of Deinacrida megacephala
- Star-fish Opening an Oyster
- berries of the bittersweet
- Low at our feet are the red ones of the wintergreen
- Pterostichus opulentus - Larva
- Body of an insect
- Milkweed plant
- Cherry flower
- Stethaspis suturalis - Larva
- Colymbetes rufimanus
- Apple
- Dorcus punctulatus
- white baneberry
- Dryocora howittii - Larva
- barberries
- Dryocora howittii