Pob zeb zoo nkauj thiab loj-hnab yog kev txhawj xeeb rau cov pob khoom ecology thiab muaj peev xwm tso tseg pob khoom pov tseg.
Pob zeb zoo nkauj thiab loj-hnab yog kev txhawj xeeb rau cov pob khoom ecology thiab muaj peev xwm tso tseg pob khoom pov tseg.