Nyob rau hauv nws daim ntawv menyuam yaus, cov roob ris yog xim av tsaus, ntshav, lossis xim txiv kab ntxwv. Raws li ib tug neeg laus, nws yog xim xiav-grey. Cov poj niam qee zaum pom lub teeb grey lossis dawb (Daim duab 2). Ib tug claw loj dua lwm tus thiab cov ceg taug kev yog cov plaub mos mos.
Npua av puas noj tau zoo?
av crabs yog noj tau, tsawg kawg yog claw thiab ceg nqaij. … Raws li Florida Fish and Wildlife Conservation Commission, txij thaum Lub Xya Hli 1, nws yuav tsis raug cai noj lawv lossis sau lawv lossis ua lwm yam nrog lawv rau qhov teeb meem ntawd vim nws yog lub caij mating.
Koj nrhiav av nyob qhov twg?
av roob ris, ib qho roob ris ntawm tsev neeg Gecarcinidae (txhais Decapoda ntawm chav kawm Crustacea), feem ntau yog cov av av, square-bodied crabs uas qee zaus, raws li cov neeg laus, rov qab mus rau hauv hiav txwv. Lawv tshwm sim hauv tauj Asmeskas, West Africa, thiab thaj tsam Indo-Pacific. Tag nrho cov tsiaj pub rau tsiaj thiab cog cov ntaub so ntswg.
Vim li cas av roob ris noj tau?
av crabs kuj noj tau, yam tsawg kawg ntawm claw thiab ceg nqaij. Vim lawv noj cov nroj tsuag cog, cov tshuaj tua kab tuaj yeem nkag rau hauv cov kabmob sab hauv thiab yog vim li no thiaj li yuav tsum noj cov nqaij nyug thiab ceg. … Txawm hais tias av roob ris yog agile thiab nrawm, lawv tsis muaj kev phom sij rau tib neeg tshwj tsis yog raug ntes thiab tuav.
Koj pub av dab tsi?
av crabs nyiam noj zaub mov nplooj, berries, paj, nyom, thiabdecaying plant material. Qee lub sij hawm cov crabs no noj cov kab, kab laug sab, carrion, thiab quav. Av crabs feem ntau tsis txav deb ntawm lawv qhov burrows mus rau zaub mov thiab feem ntau nqa zaub mov hauv lawv cov claws rov qab rau lawv cov burrows noj.