HS-LS4-4

Construct an explanation based on evidence for how natural selection leads to adaptation of populations.

  1. Chemistry

    A plant enemy’s enemy

    Plants use chemicals to recruit help in fighting off pests.

    By Jill Richardson
  2. Fossils

    A really big (but extinct) rodent

    A rodent about the size of a bison once roamed the riverbanks of ancient Venezuela.

    By Emily Sohn