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The mark-recapture technique is often used to estimate population size.
Snout and mouth of sand tiger shark, showing protruding teeth and small eyes
Lestidae is a rather small family of cosmopolitan, large-sized, slender damselflies. They are of the
Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i
Fine motor skills involve coordinating the many small muscles of the wrists, hands, and fingers.
Insect with a Simple Brain