Mary Allen
Barking, qhov muag, lub cev lus - txawm tias dev (tseem) hais tsis tau, lawv qhia peb ntau heev. Tail wagging kuj qhia tau hais tias dev zoo li cas tam sim no. Thiab tsis yog, qhov no tsis yog ib txwm muaj kev xyiv fab dawb huv.
Koj los tsev thiab koj tus dev tos txais koj nrog ib tug wagging tus Tsov tus tw. Tail wagging = kev xyiv fab, ib tug yuav infer. Tab sis tsis yog txhua yam yooj yim heev. Vim hais tias los ntawm kev txav nws tus Tsov tus tw rov qab, koj tus dev tuaj yeem qhia lwm yam kev xav thiab.
Tail wagging tuaj yeem muaj ntau lub ntsiab lus. Txawm hais tias muaj ntau tus tswv xav li ntawd: dev tsis cia li wag lawv tails rau kev xyiv fab. Ntawm qhov tsis sib xws: Yog hais tias, piv txwv li, lub cev nyob twj ywm thaum wagging, thiab tus aub txo nws lub taub hau me ntsis, tus Tsov tus tw wagging qhia tau hais tias tsuas yog tus aub lub excitement sai ua ntej qhov kev tawm tsam.
Ntshai lossis Kev xyiv fab: Cov dev Wag Lawv Tails rau ntau yam laj thawj
Cov kws tshawb fawb tseem lees paub tias tsis yog txhua tus Tsov tus tw wagging yog tsim sib npaug. Rau txoj kev tshawb no, luam tawm nyob rau hauv phau ntawv journal Current Biology, cov kws tshawb fawb tau ua raws li 30 tus dev ntawm hnub nyoog ntawm ib thiab rau xyoo. Lawv tshawb xyuas seb cov dev wag lawv cov tail sib txawv nrog qhov sib txawv ntawm qhov muag pom. Qhov tseeb, tus Tsov tus tw yuav tig mus rau sab xis thaum nws pom nws tus tswv. Ntawm qhov tod tes, qhov pom ntawm ib tug txawv txawv, menacing aub ua rau tus Tsov tus tw wag sai sai rau sab laug.