It is just possible, by the theory, that one of two living forms might have descended from the other; for instance, a horse from a tapir; and in this case DIRECT intermediate links will have existed between them.

从理论上讲， 两种生物中的一种可能是另一种的后代。例如，貘的马； 在这种情况下， 它们之间将存在 DIRECT 中间链接。