Kev rov qab los ntawm beaver Lub Eurasian beaver yog haiv neeg rau tebchaws Askivthiab tau siv dav hauv tebchaws Askiv, Wales thiab Scotland, tab sis tsis tau paub los ntawm Ireland. Lawv tau ploj mus nyob rau xyoo pua 16th, feem ntau yog vim kev yos hav zoov rau lawv cov plaub, nqaij thiab 'castoreum', ib qho zais cia siv hauv tshuaj tsw qab, zaub mov thiab tshuaj.
beavers originated qhov twg?
Ntawm beavers yog tib cov tswv cuab ntawm tsev neeg Castoridae. Lawv tshwm sim hauv North America nyob rau hauv lub caij Eocene thiab tawg mus rau hauv Eurasia ntawm Bering Land Choj nyob rau hauv thaum ntxov Oligocene, coinciding nrog lub Grande Coupure, ib lub sij hawm ntawm loj faunal turnover nyob ib ncig ntawm 33 lab xyoo dhau los. (mya).
Vim li cas beavers tau rov qab qhia rau UK?
Beavers tau rov qab qhia rau cov nroog thoob plaws tebchaws Askiv tom qab 400 xyoo ntawm kev ploj tuag. Raws li hom pob zeb tseem ceeb, lawv yuav hloov kho qhov chaw nyob ib puag ncig lawv, txhawb nqa lwm yam tsiaj thiab txo kev pheej hmoo ntawm dej nyab. … Beavers yog hom pob zeb tseem ceeb, uas txhais tau hais tias lawv lub xub ntiag yog qhov zoo rau qhov chaw uas lawv nyob.
Thaum twg beavers tau ploj mus hauv Tebchaws Europe?
Lub Eurasian lossis European beaver tau nthuav dav hauv Tebchaws Askiv thiab Europe tab sis raug tua thoob plaws nws thaj tsam rau nws cov plaub hau thiab rau nws cov ntxhiab tsw ntxhiab, hu ua castoreum. Nws tau ploj mus hauv tebchaws Aas Kiv los ntawm 16th caug xyoo thiab cov neeg Eurasian tsuas yog 1 200 tus neeg hauv 1900.
Lub teb chaws twg muajtus beavers tshaj plaws?
North American beavers muaj nyob rau hauv hav zoov ntawm Canada, Tebchaws Meskas, thiab sab qaum teb Mexico. Cov pej xeem North American beaver tau poob qis ntau xyoo. North American Beavers tau kwv yees ib zaug ntau dua 60 lab tab sis tam sim no kwv yees li ntawm 6-10 lab.
