burrow system造句

• These animals excavate long burrow systems with passages, chambers and multiple entrances.
• Burrow systems of the Mongolian gerbil ( Meriones unguiculatus Milne Edwards, 1867 ).
• Other parts of the burrow system are used for food storage.
• During adverse weather or if disturbed they will retreat to their burrow systems.
• They live in burrow systems with one or two adults with overlapping home areas.
• One trirachodontid, " Trirachodon ", has been found in association with complex burrow systems.
• The jerboas build large burrow systems, underground tunnels, to stay in during the day.
• Reports also stated that three or four individuals commonly occupy the same burrow system.
• Burrow systems are very complex and range from in length.
• Perote ground squirrels form family groups within individual burrow systems.
• Particularly large individuals may also leave the colony to establish a new burrow system.
• During the days, they shelter in very deep burrow systems.
• The burrow system consists primarily of foraging tunnels, which the rats dig in search of food.
• Only one adult occupies a given burrow system, except for a brief period during breeding activity.
• Their below-ground refuges were almost exclusively Baird's pocket gopher ( " Geomys breviceps " ) burrow systems.
• Voles spend most of their time underground in their burrow systems and seldom venture into the surface.
• Females typically give birth only once a year, in a grass-lined underground chamber within a burrow system.
• Mounded burrows contain multiple entrances and probably have a deep and extensive burrow system that protects kits.
• Because burrow systems can approach within of each other, burrowing animals warn away rivals using sex-specific seismic signals.
• Spinifex hopping mice live in small family groups of up to 10 individuals in deep, humid burrow systems.