HS-LS4-5

Evaluate the evidence supporting claims that changes in environmental conditions may result in: (1) increases in the number of individuals of some species, (2) the emergence of new species over time, and (3) the extinction of other species.

More Stories in HS-LS4-5

  1. Health & Medicine

    Explainer: What is monkeypox?

    Once rare, the viral disease monkeypox exploded onto the global scene for the first time in 2022.

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  2. Animals

    ‘Mystery monkey’ could mean its parent’s species may be in trouble

    Changes to monkeys’ habitats — including some forest loss to oil palm plantations — might explain why this animal’s parents mated.

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  3. Fossils

    Bright-colored feathers may have topped pterosaurs’ heads

    Fossil remains of a flying reptile hint that their vibrant crests may have originated 250 million years ago in a common ancestor with dinosaurs.

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  4. Humans

    Scientists Say: Denisovan

    The Denisovans were a recently discovered population of ancient hominids.

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  5. Fossils

    Cool Jobs: Bringing paleontology to the people

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

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  6. 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.

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  7. 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.

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  8. Animals

    The end of the dinosaurs appears to have come in springtime

    Fish fossils from North Dakota suggest when the Chicxulub asteroid devastated Earth, triggering the mass extinction of dinosaurs and other species.

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  9. Archaeology

    Our species may have reached Europe while Neandertals were there

    Archaeological finds from an ancient French rock-shelter show periodic settlements by both populations, just not at the same time.

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