They looked as if they had been manufactured in an identical bath, and he wondered how these creatures reproduced.

These creatures reproduce quickly by raping human women and impregnating them.

When they were exposed to infected ticks, the creatures fell off sooner, didn't eat as much, and didn't reproduce as well.

The creature, 80 instructions long, quickly reproduced, and its identical descendants dominated the computer screen.

He had re-created an animal millions of years old, with such precision that the creature could even reproduce itself.

Earthian creatures did not reproduce well; they did not live long.

When resources are plentiful and predictable, living creatures should reproduce while they can and while their offspring have the best opportunity for survival.

It is how these creatures reproduce, by stealing human brains.

This was also the means by which the creatures could reproduce.

Some games also introduce mutations due to random or environmental factors, which can benefit the population as creatures reproduce.