An overview of some research into lateralisation: the dominance of one side of the body over the other creatures across the animal kingdom have a preference for one foot, eye or even antenna.
They stick to the foot of an animal and travel to a hospitable place.
他们会粘到动物的脚上到达适宜生长的地方。
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Transboundary animal diseases such as Foot-and-Mouth Disease (FMD), screwworm and peste des petits ruminants (PPR) are especially threatening in Iraq and in the region.