The future survival of the bald eagle is still an important American ecological concern.
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HowmanypeopleareawarethatadancerwiththeNewYorkCityBallettypicallywearsoutaminimumoftwohundredpairsoftoeshoesperyear?
Alligatorsstillexistinsomeofthedank潮湿swampsandbayous小海湾ofAlabama'scoastalregions.
The Salk vaccine is a major factor in the fight to eradicate polio.
Alligators still exist in some of the dank 潮湿 swamps and bayous小海湾 of Alabama's coastal regions.
Incalculatingthedailycalorierequirementsforanindividual,variationsinbodysize,physicalactivity,andageshouldbetakenintoaccount.