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Human mammary gland secretion stage magnified in 400 times under microscope on bright field
Mammary gland secretion stage magnified in 200 times under microscope on bright field background
Human mammary gland in secretion stage filmed under microscope 100x on bright field background
Collecting saliva from a kitten using a cotton swab to test for viral infections. A veterinarian wearing gloves runs a cotton swab across the oral mucosa to obtain a smear for analysis.
Macro Shot of Multiple Millipede, Diplopoda Rolled on the Floor, One Crawling Away - Close Up