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drill
(redirected from oyster drills)

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drill

In military usage, the repetition of certain fixed movements in response to set commands. Drill is used to get a body of soldiers from one place to another in an orderly fashion, and for parades and ceremonial purposes.

drill

Large Old World monkey Mandrillus leucophaeus similar to a baboon and in the same genus as the mandrill. Drills live in the forests of Cameroon and Nigeria. Brownish-coated, black-faced, and stoutly built, with a very short tail, the male can have a head and body up to 75 cm/2.5 ft long, although females are much smaller.



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Long Island Sound oystermen routinely thin and clean the underwater beds they lease from the state, while removing predators such as starfish and snails called oyster drills.
This pouch design prevented predation on oyster spat from common predators like blue crabs (Callinectes sapidus) and oyster drills (Stramonita haemastoma) (Smith 1983, Eggleston 1990).
Transfers of oysters are still regulated and quarantine areas established to reduce further spread of oyster drills (WDFW 1961, Nosho 1975).
 
 
 
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