rock squirrel

同根派生

rock squirrel ( Sciurotamias davidianus)
石松鼠
Mammals include: leopard, wolf, jackal, fox, weasel, lynx, wild boar, rock squirrels, mice and other flower.
獸類主要有：豹、狼、豺、狐、黃鼠狼、山貓、野豬、巖松鼠、花鼠等。
A squirrel hoards nuts for the winter.
松鼠為過(guò)冬貯藏堅(jiān)果。
The squirrel ran up a tree and got out of my reach.
松鼠跑到樹上去了，我逮不著。
This species preys on ground and rock squirrels, which by six weeks of age develop a natural resistance to withstand a full envenomation, suggests research at the University of California, Davis.
北太平洋響尾蛇可捕食地面和巖石間的松鼠，不過(guò)這種松鼠在六周大時(shí)，就可自然發(fā)育出抗毒機(jī)制。