MS-LS4-6

Use mathematical representations to support explanations of how natural selection may lead to increases and decreases of specific traits in populations over time.

More Stories in MS-LS4-6

  1. Plants

    This pitcher plant lures insects into underground deathtraps

    Scientists didn’t expect the carnivorous, eggplant-shaped pitchers to be sturdy enough to grow embedded in the soil.

    By
  2. Animals

    Butterfly ‘tails’ might be part of an escape tactic

    Slender, tail-like extensions on their wings may help some butterflies survive attacks by hungry predators.

    By
  3. Tech

    Virtual critters evolve bodies that help them learn

    A combination of evolution and learning may lead to more intelligent and agile robots.

    By
  4. Humans

    Scientists Say: Denisovan

    The Denisovans were a recently discovered population of ancient hominids.

    By
  5. Fossils

    Cool Jobs: Bringing paleontology to the people

    From museums to movies, these three paleontologists totally rock their connections with the public.

    By
  6. Animals

    A dog’s breed doesn’t say much about its behavior

    Many people associate dog breeds with specific behavioral traits. But breed appears to account for only about 9 percent of behavioral differences.

    By
  7. Animals

    Surprise! Sixteen tiny wasp species found masquerading as one

    Scientists used new and old tools to overturn 160-year-old ideas about this wasp. They show you can’t tell a wasp by its looks.

    By
  8. Fossils

    One of the earliest meat-eating mammals was saber-toothed

    Millions of years before the evolution of saber-toothed cats, a newly discovered "hypercarnivore" prowled the forests of what is now San Diego.

    By
  9. Life

    Explainer: What is an endangered species?

    Threats such as climate change and habitat loss can put species at risk of going extinct. Different words describe that risk.

    By