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In_II the_AT 1960_MC221 's_MC222 ,_, Rachel_NP1 Carson_NP1 wrote_VVD a_AT1 book_NN1 entitled_VVN The_AT Silent_JJ Spring_NN1 ._. 
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This_DD1 book_NN1 was_VBDZ very_RG significant_JJ in_II alerting_VVG Americans_NN2 to_II the_AT danger_NN1 of_IO so_RG much_DA1 environmental_JJ pollution_NN1 occurring_VVG that_CST we_PPIS2 would_VM wake_VVI up_RP some_DD spring_NN1 day_NNT1 and_CC hear_VVI no_AT birds_NN2 singing_VVG ._. 
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How_RGQ tragic_JJ that_CST would_VM have_VHI been_VBN !_! 
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Besides_RR completing_VVG an_AT1 important_JJ ecological_JJ balance_NN1 for_IF nature_NN1 ,_, birds_NN2 give_VV0 us_PPIO2 much_RR pleasure_NN1 in_II their_APPGE twirping_NN1 ,_, chirping_VVG ,_, and_CC warbling_VVG every_AT1 morning_NNT1 at_II dawn_NNT1 and_CC later_RRR ._. 
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Her_APPGE message_NN1 awakened_VVD many_DA2 Americans_NN2 to_II the_AT need_NN1 to_TO protect_VVI and_CC preserve_VVI wildlife_NN1 ,_, not_XX only_RR birds_NN2 ,_, but_CCB also_RR many_DA2 other_JJ forms_NN2 of_IO wildlife_NN1 ._. 
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Now_RT there_EX are_VBR many_DA2 environmental_JJ protection_NN1 groups_NN2 in_II the_AT US_NP1 ,_, including_II the_AT Sierra_NP1 Club_NP1 ,_, Greenpeace_NP1 ,_, and_CC the_AT Nature_NN1 Conservancy_NN1 ._. 
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There_EX is_VBZ now_RT even_RR a_AT1 Green_JJ Party_NN1 ,_, modeled_VVD after_II the_AT environmentally_RR friendly_JJ Green_JJ parties_NN2 in_II Western_NP1 Europe_NP1 ._. 
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US_NP1 states_NN2 have_VH0 prescribed_VVN hunting_NN1 seasons_NNT2 for_IF deer_NN ,_, rabbits_NN2 ,_, birds_NN2 and_CC certain_JJ other_JJ wild_JJ animals_NN2 ._. 
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This_DD1 helps_VVZ to_TO maintain_VVI a_AT1 healthy_JJ natural_JJ balance_NN1 ,_, without_IW allowing_VVG species_NN to_TO be_VBI exterminated_VVN or_CC to_TO become_VVI over_RP excessively_RR populated_VVN ._. 
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Going_VVG to_II or_CC coming_VVG from_II a_AT1 meeting_NN1 at_II my_APPGE university_NN1 in_II America_NP1 at_II night_NNT1 ,_, or_CC driving_VVG in_II the_AT country_NN1 ,_, we_PPIS2 can_VM often_RR see_VVI small_JJ wild_JJ animals_NN2 ,_, and_CC often_RR two_MC or_CC three_MC deer_NN ._. 
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Outside_II my_APPGE home_NN1 ,_, besides_II the_AT many_DA2 birds_NN2 in_II the_AT trees_NN2 ,_, there_EX are_VBR often_RR bushy_JJ tailed_JJ squirrels_NN2 leaping_VVG from_II branch_NN1 to_II branch_NN1 ._. 
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Driving_VVG up_II21 to_II22 Lake_NNL1 Ontario_NP1 fifteen_MC minutes_NNT2 north_ND1 of_IO my_APPGE home_NN1 ,_, it_PPH1 is_VBZ possible_JJ to_TO see_VVI larger_JJR fish_NN or_CC schools_NN2 of_IO small_JJ fish_NN in_II the_AT water_NN1 ._. 
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We_PPIS2 need_VV0 to_TO have_VHI wild_JJ animals_NN2 available_JJ in_II nature_NN1 ,_, quite_RR apart_II21 from_II22 zoos_NN2 ,_, for_IF the_AT future_JJ balance_NN1 of_IO the_AT earth_NN1 ._. 
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US_NP1 state_NN1 and_CC national_JJ parks_NN2 have_VH0 the_AT duty_NN1 to_TO preserve_VVI wild_JJ life_NN1 for_IF future_JJ generations_NN2 ._. 
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One_MC1 of_IO the_AT largest_JJT nature_NN1 reserves_NN2 in_II the_AT world_NN1 is_VBZ Kruger_NP1 Park_NN1 in_II South_NP1 Africa_NP1 ,_, which_DDQ is_VBZ larger_JJR than_CSN many_DA2 US_NP1 states_NN2 or_CC Chinese_JJ provinces_NN2 ._. 
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All_DB humans_NN2 have_VH0 the_AT responsibility_NN1 to_TO protect_VVI our_APPGE wildlife_NN1 so_CS21 that_CS22 we_PPIS2 can_VM enjoy_VVI it_PPH1 for_IF generations_NN2 to_TO come_VVI ._. 
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