A long tail can be used to move through water by an animal.
Thus swimming is defined as a special kind of moving, namely moving in or through water.
A long tail can be used for swimming by an animal.
a long tail can be used for _ by an animal
Options:
(a) bullfrogs
(b) swimming
(c) growth
(d) flying
(e) courtship
(f) navigation
(g) support
(h) mating