Txawm tias nws yog pom tseeb tsis yooj yim rau swans tua tib neeg, kev aggression yog par rau cov chav kawm. Yog tias lawv xav tias lawv raug hem - tshwj xeeb tshaj yog thaum lub caij sib tw thiab zes - lawv yuav tawm tsam kiag li. Feem ntau, lawv tsuas yog nplawm thiab them koj thaum nws yws.
swan puas tua tib neeg?
Tab sis qhov xwm txheej zoo li no tsawg heev, hais tias John Huston ntawm Abbotsbury Swannery hauv Dorset, qhov chaw muaj 1,000 swans tab sis tsis tau sau tseg kev tawm tsam rau tib neeg hauv thaj tsam 600- xyoo keeb kwm.
swan txaus ntshai npaum li cas?
SWANS muaj lub koob npe nrov txaus ntshai. Lawv muaj peev xwm, nws yog feem ntau hais tias, rhuav ib tug neeg txhais caj npab nrog ib tug tshuab ntawm tis. Tau ntes tau 1,500 leej lawm, kuv paub tseeb tias qhov ze ze ntawm tus swan yam yog tsis zoo yuav ua rau ntau dua li ob peb leeg ntawm caj npab thiab ncej puab.
swan tua tau aub?
“Peb thov kom cov tswv tsev paub tias tej zaum yuav muaj tsiaj qus nyob hauv cheeb tsam thaum taug kev lawv tus dev thiab kom lawv tus dev tswj tau txhua lub sijhawm. "Tsawg kawg peb raug hu mus rau ntau kis thaum swans tau raug tua nyob rau hauv kev tawm tsam dev."
Vim li cas swans ntxub dev?
Txawm hais tias swan tawm tsam, zoo ib yam li cov seagulls, ua cov xov xwm thaum lawv tshwm sim, lawv suav hais tias tsis tshua muaj neeg thiab yog ib feem ntawm kev tiv thaiv tus cwj pwm. Ib tug swan yuav pom ib tug dev raws li kev hem thawj, raws li ib tug predator. Txhua tus tsiaj yuav tiv thaiv lawv cov menyuam,”hais Mr Dempsey.
