Meanings of extremely prolific in English

This last source of revenue became in time, with the development of watering-places, extremely prolific.

Loti now became extremely prolific, and in a succession of volumes chronicled old exotic memories or manipulated the journal of new travels.

The goats too are extremely prolific, and generally breed thrice in the year, having commonly from two to four kids at a time.

Cohabiting with criminals, and being extremely prolific, the result was the production of a stock exceeding 500 in number, of a prevalent criminal type.

The northern portion is an extremely prolific farming region, made up of undulating lands with deep rich soil, composed of clays and volcanic ash.