They are small degenerate animals with a relatively firm integument.
He allows his taste for these tricks of style to degenerate into mannerism.
But why do men degenerate ever?
That this accuracy may sometimes degenerate into triviality, and that such absorption in trifles may occasionally hide the broad horizon, is conceivable.
Cattle and horses, where introduced, are found to degenerate rather rapidly unless the supply of fresh stock is kept up. Birds are more numerous than mammals, among the most important kinds being the pigeons and doves, especially the fruit-eating pigeons.