The movements of addax are intimately related to the distribution of their food, which in turn is related to the weather. Addax are most likely to be found along the northern fringe of the tropical summer rains, moving north in winter as the Mediterranean trough system brings rain southwards.
Accentor differ from sparrows in having slender and finely pointed bills and a well developed tenth primary wing feather. Accentors are found throughout Europe and Asia. The dunnock can be seen all over Europe except in parts of the far north and south.
Some abalones are among the largest shellfish: they range in size from the 1 in. long and very rare Haliotis pourtalese to the red abalone of California, which is up to 10 in. across.
The aardwolf ranges throughout southern and eastern Africa as far north as Somalia. The aardwolf lives almost entirely mites and other insects, but lacks claws strong enough to tear open termite nests, so it is limited either to picking up the insects from the surface of the ground, or digging them out of soft soil.
Aardvark is an African mammal with a bulky body, 6 ft long including a 2 ft tail, and standing 2 ft high at the shoulder. Its tough grey skin is so sparsely covered with hair that it often appears naked except for areas on the legs and hind quarters.