Spider Head and fangs 1024 x 768 bitmap
Spider Head and fangs 1024 x 768 jpeg
Spider Head and fangs 800 x 600 bitmap
Spider Head and fangs 800 x 600 jpeg
Spider Head and fangs 640 x 480 bitmap
Spider Head and fangs 640 x 480 jpeg
Tobacco Leaf surface 1024x768 bitmap
Tobacco Leaf surface 1024x768 jpeg
Tobacco Leaf surface 1024x768 color jpeg
Tobacco Leaf surface 800x600 bitmap
Tobacco Leaf surface 800x600 jpeg
Tobacco Leaf surface 640x480 bitmap
Tobacco Leaf surface 640x480 jpeg
Daisy Pollen 1024x768 bitmap
Daisy Pollen 1024x768 jpeg
Daisy Pollen 1024x768 color jpeg
Daisy Pollen 800x600 bitmap
Daisy Pollen 800x600 jpeg
Daisy Pollen 640x480 bitmap
Daisy Pollen 640x480 jpeg
California Poppy Pollen 1024x768 bitmap
California Poppy Pollen 1024x768 jpeg
California Poppy Pollen 1024x768 jpeg colorized...
California Poppy Pollen 800x600 bitmap
California Poppy Pollen 800x600 jpeg
California Poppy Pollen 640x480 bitmap
California Poppy Pollen 640x480 jpeg
Jasmine Pollen 1024x768 bitmap
Jasmine Pollen 1024x768 jpeg
Jasmine Pollen 800x600 bitmap
Jasmine Pollen 800x600 jpeg
Jasmine Pollen 640x480 bitmap
Jasmine Pollen 640x480 jpeg
Weed Pollen 1600x1200 bitmap
Weed Pollen 1600x1200 jpeg
Weed Pollen 1024x768 bitmap
Weed Pollen 1024x768 jpeg
Weed Pollen 800x600 bitmap
Weed Pollen 800x600 jpeg
Weed Pollen 640x480 bitmap
Weed Pollen 640x480 jpeg
Weed Pollen 1600x1200 bitmap
Weed Pollen 1600x1200 jpeg
Weed Pollen 1024x768 bitmap
Weed Pollen 1024x768 jpeg
Weed Pollen 640x480 bitmap
Weed Pollen 640x480 jpeg
Link: http://biology.berkeley.edu/EML/backgrounds.html