Vim li cas lub sijhawm gestation rau tus luav?

Cov txheej txheem:

Vim li cas lub sijhawm gestation rau tus luav?
Vim li cas lub sijhawm gestation rau tus luav?
Anonim

Lub sijhawm cev xeeb tub hauv tus luav yog 31 hnub thiab tus doe tuaj yeem tsim tau los ntawm 1 txog 12 tus menyuam txhua zaus nws yug. Nws tuaj yeem xeeb tub dua li ob peb hnub tom qab yug menyuam. Txawm li cas los xij nws tsis yog qhov kev coj ua zoo uas tso cai rau tus doe cev xeeb tub ncaj qha tom qab yug me nyuam.

Tus luav puas tuaj yeem yug tau 3 lub hlis?

pib nrog, cottontail rabbits muaj peev xwm pib yug me nyuam thaum muaj hnub nyoog yau, thaum muaj hnub nyoog 2 hlis txog 3 hlis, raws li Animal Diversity Web. Cov luav kuj tseem muaj lub sijhawm cev xeeb tub, nyob nruab nrab ntawm 25 thiab 28 hnub, uas txhais tau tias lawv tuaj yeem muaj ob peb lub litter ntawm cov menyuam yaus txhua xyoo.

Dab tsi yog qhov cim ntawm tus menyuam luav?

Lab cev xeeb tub cov tsos mob

  • Lub tsev zes - poj niam luav instinctively tsim ib lub zes siv quav nyab los yog straw thaum lawv cev xeeb tub.
  • Npua rub - sai sai no cov niam txiv rub lawv cov pluav tawm los siv ua pam vov kom cov menyuam sov.
  • Tus cwj pwm txhoj puab heev - koj tus luav yuav qw nrov nrov tiv thaiv, lossis tsis kam raug petted lossis stroked.

luav ua dab tsi thaum mating?

Muaj nws tus kheej kev nrawm nrawm, nrog tus txiv neej luav straddd tus poj niam luav nrog nws lub hauv pliaj, tuav nws caj dab nrog nws cov hniav. Tom qab ob peb thrusts, nws yuav ejaculate thiab, es unceremoniously, ib pliag tsis nco qab thiab poob tawm nws sideways.

Puas tau txais ibcev xeeb tub?

Qhov no tsuas yog ib qho kev qhia dav dav xwb, thiab yog tias koj tsis yog kws kho tsiaj lossis cov kws paub txog tsiaj txhu, koj yuav tsum tsis txhob sim palpate tus menyuam luav ntawm koj tus kheej. Tsis txhob palpate tus menyuam luav yog tias nws tau dhau 14 hnub txij li tus luav tau yug. Ua li no yuav ua rau muaj kev puas tsuaj rau cov fetuses.

Pom zoo:

Nthuav cov khoom
Pob splanchnic paj hlwb synapse?
Nyeem ntxiv

Pob splanchnic paj hlwb synapse?

Cov hlab ntsha loj dua splanchnic taug kev los ntawm diaphragm thiab nkag mus rau hauv plab kab noj hniav. Nws fibers synapse ntawm celiac ganglia. Cov hlab ntsha txhawb nqa rau lub celiac plexus, lub network ntawm cov hlab ntsha nyob rau thaj tsam ntawm qhov chaw ntawm lub cev celiac ceg ntawm lub plab aorta.

Yuav coreopsis puas tawg rau lub caij ntuj sov?
Nyeem ntxiv

Yuav coreopsis puas tawg rau lub caij ntuj sov?

yog qhov kev xaiv zoo meej. Nrog ntau tshaj 80 hom coreopsis, muaj ntau yam kom haum txhua lub vaj tsim. Haiv neeg rau North America, coreopsis nroj tsuag loj hlob nyob rau hauv upright clumps thiab feature masses ntawm kaj, showy, daisy-zoo li paj thoob plaws lub caij ntuj sov.

Lub ntsiab lus ntawm kev hush up yog dab tsi?
Nyeem ntxiv

Lub ntsiab lus ntawm kev hush up yog dab tsi?

: tsi ntsiag to kuv hais rau nws kom txhob maj. slang txhais li cas? Koj hais 'Hush! ' rau ib tug thaum koj nug lossis qhia kom lawv nyob ntsiag to. Nkauj ruam ruam? "Tseem" yog lus Southern uas hais tias " shut up .