A member of the now-extinct hominid species Homo erectus engraved a geometric design on a sea shell nearly half a million years ago, long before the earliest evidence of comparable etchings made by ...

Design patterns have evolved to solve problems often encountered in software applications. The factory method design pattern and the abstract factory design pattern are both creational patterns.

This is a preview. Log in through your library . Abstract Shell selection and utilization in two sympatric species of hermit crabs from the Natal coast, namely Clibanarius virescens (Krauss, 1843) and ...